Series Index: M
Series Index: M
If the series is named for a character (i.e. Hercule Poirot), it will be listed under both first and last name. Series of the form "Chronicles of," "Saga of," "Tales of," etc. (i.e. Chronicles of Amber) are listed under the terms that follow (i.e. Amber).
Click on a category name to bring up the corresponding list. If the list is long, use your browser's "find" or "find in page" command to search for the series name or author's name.
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M
- Mabry, Bubba series by Steve Brewer (Hardboiled Detectives) (Humorous Mysteries)
- Mabry, Caroline series by Jess Walter (Police Procedurals) (Regional Mysteries: Spokane)
- Mac and Wynter series by Judith Ryan Hendricks (Food Fiction) (Surviving Loss/Aftermath of Tragedy)
- Mac Fontana series by Earl Emerson (Regional Mysteries: Washington State)
- "Mac" McKenzie, Rushmore series by David Housewright (Hardboiled Detectives) (Regional Mysteries: Minnesota)
- Macbeth, Hamish series by M.C. Beaton (British Mysteries)
- MacCrimmon, Liss series by Kaitlyn Dunnett (Amateur Sleuths)
- MacDonald, Paul series by Julie Smith (Regional Mysteries: California)
- MacDonell Brides series by Jen Holling (Highland Romances)
- Mace Bauer series by Deborah Sharp (Humorous Mysteries) (Senior Sleuths)
- MacGowen, Maggie series by Wendy Hornsby (Regional Mysteries: Los Angeles)
- MacGregor series by Nora Roberts (Contemporary Melodrama) (Contemporary Romances)
- Macguire, Cormac & Gavin, Nora series by Erin Hart (Regional Mysteries: Europe: Ireland)
- Macintyre, Urbino series by Edward Sklepowich (Regional Mysteries: Italy)
- Mack, One-Eyed series by Jim Lehrer (Humorous Thrillers) (Political Thrillers)
- MacKade Brothers series by Nora Roberts (Contemporary Romances)
- MacKenzie, Robin series by K.M. Soehnlein (Gay Male Interest)
- Mackenzies series by Ana Leigh (Historical Romances)
- MacKinnon, Scotia series by Sharon Duncan (Regional Mysteries: Washington State)
- MacLachlan series by Liz Carlyle (Regency Romances)
- MacLaren, Colin & Moffat, Claire series by Marion Zimmer Bradley (Paranormal Thrillers)
- Maclean, Clan series by Lynne Hayworth (Highland Romances)
- MacLean, Theresa series by Lisa Black (Forensic Detectives)
- Macleod, Enzo series by Peter May (Past & Present Mysteries) (Regional Mysteries: France)
- Macklin, Peter series by Loren D. Estleman (Regional Mysteries: Detroit)
- Maclin, Madeline series by Jane Tesh (Paranormal Mysteries)
- MacPherson, Elizabeth series by Sharyn McCrumb (Forensic Detectives) (Humorous Mysteries)
- MacRae, Logan series by Stuart MacBride (Psycho-Killer Thrillers)
- Macro & Cato series by Simon Scarrow (Historical Fiction: Ancient Rome)
- Macsen's Treasure series by Kathleen Cunningham Guler (Celtic/Gaelic/Welsh Tales) (King Arthur & Camelot)
- Mad Dog & Englishman series by J.M. Hayes (Native American Mysteries) (Regional Mysteries: Kansas)
- Madame Karitska series by Dorothy Gilman (Paranormal Mysteries) (Paranormal Thrillers)
- Madden, John series by Rennie Airth (British Mysteries)
- Maddox, Cassie series by Tana French (Psychological Suspense)
- Maddox, Ivor series by Elizabeth Linington (Police Procedurals) (Regional Mysteries: Hollywood)
- Made By Hand, World series by James Howard Kunstler (Dystopian Futures)
- Madeline Bean series by Jerrilyn Farmer (Culinary Mysteries)
- Madeline Carter series by Linda L. Richards (Spunky Women Sleuths)
- Madeline Dare series by Cornelia Read (Amateur Sleuths)
- Madeline Island series by Jay Gilbertson (Contemporary Women's Friendships)
- Madeline Maclin series by Jane Tesh (Paranormal Mysteries)
- Madison County series by Robert James Waller (Short & Sweet Romances)
- Madison Dupre series by Harold Robbins & Junius Podrug (Rich & Famous: Sex & Revenge)
- Madlen & Debra series by Elleston Trevor (Clerical/Church Thrillers)
- Madison, Jane series by Mindy Klasky (Libraries & Librarians) (Romantic Fantasy)
- Madness, Magic or, series by Justine Larbalestier (Children's Fantasy)
- Madoc series by Anna Lee Waldo (Celtic/Gaelic/Welsh Tales) (Historical Fiction: Middle Ages) (Native American Interest)
- Madonna, Dark series by Elaine Moore (Vampyre Gothic)
- Madriani, Paul series by Steve Martini (Legal Thrillers)
- Maeniel & Regeane series by Alice Borchardt (Historical Fantasy) (Shapechangers/Shapeshifters)
- Maestro Nostradamus series by Dave Duncan (Fantasy Mysteries) (Historical Fantasy)
- Magdalen series by Elizabeth Cunningham (Celtic/Gaelic/Welsh Tales) (Historical Fantasy) (Wicca/Goddess Worship)
- Magdalene Line series by Kathleen McGowan (Clerical/Church Thrillers) (Conspiracy Thrillers) (Long-Lost Manuscripts)
- Mage Knight series by various authors (Dungeons & Dragons & Dice)
- Mage Storms series by Mercedes Lackey (Mostly Magical) (Uneasy Lies the Head)
- Mage Wars series by Mercedes Lackey (Mostly Magical) (Uneasy Lies the Head)
- Mage Winds series by Mercedes Lackey (Mostly Magical) (Uneasy Lies the Head)
- Mageworlds series by Debra Doyle & James D. MacDonald (Space Opera)
- Maggie Kelly series by Kasey Michaels (Books & Publishing Industry Mysteries) (Humorous Mysteries)
- Maggie MacGowen series by Wendy Hornsby (Regional Mysteries: Los Angeles)
- Maggie Mars series by Cady Kalian (Humorous Mysteries)
- Maggie McLendon series by Dean James (Academic Mysteries)
- Maggie O'Dell series by Alex Kava (Psycho-Killer Thrillers)
- Maggie Reid series by Nancy Bartholomew (Humorous Mysteries) (Musical Mysteries)
- Maggie Skeritt series by Charlotte Douglas (Regional Mysteries: Florida)
- Maggie Summer series by Lea Wait (Amateur Sleuths) (Antiques Mysteries) (Art Mysteries)
- Maggie Van Zandt series by Ken Gross (Amateur Sleuths) (Spunky Women Sleuths)
- Maggody series by Joan Hess (Humorous Mysteries)
- Maggy Thorsen series by Sandra Balzo (Cozy Mysteries) (Culinary Mysteries)
- Magic series by Patricia Rice (Paranormal Romances)
- Magic, Circle of series by Debra Doyle & James D. MacDonald (Children's Fantasy)
- Magic, Dragon series by Andre Norton (Children's Fantasy) (Dragons)
- Magic, Fae series by Karen Whiddon (Romantic Fantasy) (Time Travel Romances)
- Magic Kingdom of Landover series by Terry Brooks (Humorous Fantasy)
- Magic Knight Rayearth series by Clamp (Anime/Manga)
- Magic or Madness series by Justine Larbalestier (Children's Fantasy)
- Magic the Gathering series (Dungeons & Dragons & Dice)
- Magic Time series by Marc Scott Zicree & other authors (Dark Fantasy) (Mythic/Mythopoeic/High Fantasy)
- Magica, Terra series by Lin Carter (Sword & Sorcery)
- Magical States of America series by John Peel (Children's Fantasy)
- Magician, Black series by Trudi Canavan (Mostly Magical)
- Magister series by C.S. Friedman (Mostly Magical)
- Magnolias, Sweet series by Sherryl Woods (Contemporary Romances)
- Magnus Jonson series by Michael Ridpath (Regional Mysteries: Iceland)
- Magnus Pack series by Shelly Laurenston (Shapeshifters/Shapechangers)
- Magozzi, Leo & Rolseth, Gino series by P.J. Tracy (Computer Thrillers) (Humorous Thrillers)
- Magruder Katz, Mary series by Barbara Levenson (Legal Thrillers)
- Maguire, Trish series by Natasha Cooper (Courtroom Mysteries) (Legal Thrillers)
- Mahoney, Dan series by Susan Slater (Humorous Mysteries) (Regional Mysteries: New Mexico)
- Mahoney, Sandra series by Dorothy Johnston (Regional Mysteries: Australia)
- Mahu series by Neil Plakcy (Gay Male Mysteries) (Regional Mysteries: Hawaii)
- Maine, Egypt series by Carolyn Chute (Southern/Small Town Humor)
- Maine, Mattagash series by Cathie Pelletier (Southern/Small Town Humor)
- Mainely Murder series by Sarah Graves (Regional Mysteries: Maine)
- Mainspring series by Jay Lake (Alternate History) (Science Fantasy) (Steampunk)
- Mainwaring, Edward series by Victor Suthren (Military & Naval Adventure)
- Mairead O'Clare & Sheldon Gold series by Terry Devane (Courtroom Mysteries) (Legal Thrillers)
- Maisie Dobbs series by Jacqueline Winspear (Historical Mysteries: 1900-1919)
- Maitland series by James Patrick Hunt (Hardboiled Detectives)
- Majipoor series by Robert Silverberg (Epic Fantasy)
- Makedde Vanderwall series by Tara Moss (Romantic Suspense)
- Maker, Alvin, Tales of, series by Orson Scott Card (Alternate History) (Historical Fantasy)
- Maker, Picture series by Penina Keen Spinka (Historical Fiction: Middle Ages)
- Maker's Song series by Adrian Phoenix (Vampyre Gothic)
- Malachy Foley series by David J. Walker (Hardboiled Detectives)
- Malazan Book of the Fallen series by Steven Erikson (Epic Fantasy)
- Malcolm series by George MacDonald (Christian Historical)
- Maldonado, Casey series by Judy Clemens (Paranormal Mysteries)
- Male, Rogue series by Geoffrey Household (World War II)
- Mali Andersen series by Grace F. Edwards (African-American Mysteries)
- Mallen series by Catherine Cookson (Family Sagas: English/Irish/Scottish)
- Mallin, Henrietta ("Hen") series by Peter Lovesey (British Mysteries)
- Mallorean series by David Eddings (Epic Fantasy)
- Malloren series by Jo Beverley (Historical Romances) (Sweet & Savage Romances)
- Mallory series by Max Allan Collins (Regional Mysteries: Iowa)
- Mallory, Dev series by Ed Gorman (Outlaws & Lawmen)
- Mallory, John Justin series by Mike Resnick (Paranormal Mysteries)
- Mallory, Kathleen series by Carol O'Connell (Police Procedurals) (Spunky Women Sleuths)
- Mallory and Morse series by Forrest DeVoe, Jr. (Bond. James Bond)
- Malloy, Claire series by Joan Hess (Books & Publishing Industry Mysteries) (Humorous Mysteries)
- Malone, Cotton series by Steve Berry (Long-Lost Manuscripts & Other Antiquities)
- Malone, Fitz series by Richard Hawke (Hardboiled Detectives)
- Malone, Scobie series by Jon Cleary (Regional Mysteries: Australia)
- Malory series by Johanna Lindsey (Regency Romances)
- Malory, Mrs. series by Hazel Holt (Cozy Mysteries)
- Malpas, Turnham series by Rebecca Shaw (Pastoral Fiction)
- Mama, Morgue series by C.R. Corwin (Amateur Sleuths: Seniors)
- Mambo Kings series by Oscar Hijuelos (Hispanic Interest) (The Immigrant Experience)
- Mammoth series by Stephen Baxter (Anthropomorphic Fantasy) (Prehistoric Fiction)
- Mamur Zapt series by Michael Pearce (Historical Mysteries: 1900-1910) (Regional Mysteries: Egypt)
- Man, Bug series by Tim Downs (Christian Suspense/Thrillers)
- Man, Cavalry series by Ed Gorman (Military Westerns)
- Man, Empire of, series by John Ringo (Military/War SF)
- Man, First Mountain series by William W. Johnstone (Mountain Men)
- Man, Holy series by Susan Trott (Non-Christian Inspirational)
- Man, Janus series by Colin Forbes (Espionage)
- Man/Kzin Wars series created by Larry Niven (Alien Beings) (Military/War SF) (Shared/Franchised Worlds)
- Man, Marked series by Charles Ingrid (ESP/Psionics) (Post-Apocalyptic)
- Man, Misdemeanor series by Dylan Schaffer (Legal Thrillers)
- Man, Mountain series by William W. Johnstone (Mountain Men)
- Man, November series by Bill Granger (Bond. James Bond) (Espionage)
- Man, Tawny series by Robin Hobb (Epic Fantasy) (Mythic/Mythopoeic/High Fantasy) (Otherworld Historical Fantasy)
- Mancini, Munch series by Barbara Seranella (Hardboiled Detectives) (Spunky Women Sleuths)
- Mancuso, Dante series by Domenic Stansberry (Hardboiled Detectives)
- Mandel, Greg series by Peter F. Hamilton (Adventure SF) (ESP/Psionics)
- Mandy Dyer series by Dolores Johnson (Humorous Mysteries)
- Manifold series by Stephen Baxter (Hard SF)
- Manitou series by Graham Masterton (Occult/Supernatural Horror)
- Mannerling, Daughters of series by Marion Chesney (Regency Romances)
- Manners, School for series by Marion Chesney (Regency Romacnes)
- Manning, Mark series by Michael Craft (Gay Male Mysteries)
- Manor, Bentley series by Meesha Mink & De'nesha Diamond (Urban Lit)
- Manor House series by Kate Kingsbury (Historical Mysteries: 1940s)
- Manziuk and Ryan series by N.J. Lindquist (Forensic Detectives) (Police Procedurals)
- Mapes, Harvey series by Lee Goldberg (Hardboiled Detectives)
- Maple Brook series by Sara Gruen (Animal Whisperers)
- Mapp & Lucia series by E.F. Benson (British Humor)
- Mappestone, Sir Geoffrey series by Simon Beaufort (Historical Mysteries: 12th Century)
- Mapstone, David series by Jon Talton (Regional Mysteries: Arizona)
- March, Tobias & Lake, Lavinia series by Amanda Quick (Romantic Suspense)
- Marcie Ducasse series by Glen Ebisch (Paranormal Mysteries)
- Marconi Sisters series by Maureen Child (Contemporary Romances)
- Marcus Corvinus series by David Wishart (Historical Mysteries: Ancient Rome)
- Marcus Didius Falco series by Lindsey Davis (Historical Mysteries: Ancient Rome)
- Marcus Glenwood series by T. Davis Bunn (Christian Thrillers)
- Mardu Gorgeous series by James McCourt (Gay Male Interest) (Historical Ficiton: 1950s) (Musical Fiction)
- Marduk series by John Ringo (Military/War SF)
- Margaret of Ashbury series by Judith Merkle Riley (Historical Fiction: Middle Ages)
- Margo Fortier series by Tony Fennelly (Regional Mysteries: New Orleans)
- Margot Harrington series by Robert Hellenga (Expatriates) (Romantic Comedy)
- Marianna Givens series by Thalassa Ali (Historical Fiction: 1800s) (Indian & Indian-American Interest)
- Marie Laveau series by Jewell Parker Rhodes (Paranormal Mysteries)
- Marie Lightfoot series by Nancy Pickard (Spunky Women Sleuths)
- Marine Force One series by David Alexander (Fighting Forces & Special Ops)
- Mariner, Master series by Nicholas Monsarrat (Military & Naval Adventure)
- Marines series by Susan Andersen (Contemporary Romances)
- Marines, Markham of the, series by Tim Connery (Military & Naval Adventure)
- Mario Balzac series by K.C. Constantine (Police Procedurals)
- Mario Conde series by Leonardo Padura (Regional Mysteries: Cuba)
- Mario Silva series by Leighton Gage (Pulp Fictions) (Regional Mysteries: Brazil)
- Marion, David series by Joan Brady (Psychological Suspense)
- Marja series by Susan Wright (Erotic Fantasy)
- Marjorie McClelland series by Amy Patricia Meade (Historical Mysteries: 1930s) (Upper Crust Mysteries)
- Marjory Fleming series by Aline Templeton (British Mysteries)
- Mark Beamon series by Kyle Mills (Espionage)
- Mark Bennett series by Virginia Stang (Historical Mysteries: 19th Century) (Regional Mysteries: Maryland)
- Mark Genevich series by Paul Tremblay (Hardboiled Detectives)
- Mark Harmon series by John Ringo (Technothrillers)
- Mark Hayes series by Terrill Lee Lankford (Hollywood) (Psychological Suspense)
- Mark Isen series by Ed Ruggero (Fighting Forces) (International Intrigure) (War/Military)
- Mark Manning series by Michael Craft (Gay Male Mysteries)
- Mark Townsend, Father series by Brad Reynolds (Clerical Mysteries)
- Mark Twain series by Peter J. Heck (Author as Sleuth) (Historical Mysteries: 19th Century)
- Markby and Mitchell series by Ann Granger (British Mysteries)
- Marked Man series by Charles Ingrid (ESP/Psionics) (Post-Apocalyptic)
- Markham of the Marines series by Tim Connery (Military & Naval Adventure)
- Marlene Ciampi & Butch Karp series by Robert K. Tanenbaum (Legal Thrillers)
- Marlowe, Philip series by Raymond Chandler (Hardboiled Detectives)
- Marple, Miss series by Agatha Christie (Cozy Mysteries)
- Marq'ssan Cycle series by L. Timmel Duchamp (Dystopian Futures) (Feminist/Sex Roles SF)
- Marquez, John series by Kirk Russell (Eco-Thrillers) (Regional Mysteries: California) (Sailing/Boating Mysteries)
- Marquis de Sade series by Mary Ann Mitchell (Vampire Horror)
- Marriner, Steve & Gulliver, Neil series by Robert Levinson (Gay Male Mysteries) (Historical Mysteries: 1950s) (Humorous Mysteries)
- (Mars) Barsoom series by Edgar Rice Burroughs (Beloved Worlds) (Mars, the Red Planet) (Science Fantasy)
- Mars series by Lin Carter (Mars, the Red Planet) (Science Fantasy)
- Mars series by Thomas W. Cronin (Mars, the Red Planet)
- Mars series by Kim Stanley Robinson (Mars, the Red Planet)
- Mars series by Al Sarrantonio (Adventure SF) (Anthropomorphic Fantasy) (Mars: The Red Planet)
- Mars Bahr series by K.J. Erickson (Police Procedurals)
- Mars, Maggie series by Cady Kalian (Humorous Mysteries)
- Mars, Tully series by Jimmy Buffett (Multicultural: Caribbean) (Southern/Small Town Humor)
- Mars Year One series by Brad Strickland & Thomas E. Fuller (Mars: The Red Planet) (Young Adult SF)
- Marsbound series by Joe Haldeman (Alien Beings) (Mars: The Red Planet)
- Marsh, Harry and Rees, Clio series by Jo Bannister (British Mysteries)
- Marsh, Jennifer series by Judy Fitzwater (Humorous Mysteries)
- Marsh, Jeremy series by Nicholas Sparks (Contemporary Melodrama)
- Marsh, Romney series by Kasey Michaels (Regency Romances)
- Marshal Guarnaccia series by Magdalen Nabb (Regional Mysteries: Italy)
- Marshall Brothers series by Jo Goodman (Historical Romances)
- Marshall, Neil series by Tim Hemlin (Culinary Mysteries)
- Marshall Tanner, John series by Stephen Greenleaf (Hardboiled Detectives)
- Marshall Webb & Rebecca Davies series by Troy Soos (Historical Mysteries: 19th Century)
- Martens, Harriet series by H.R.F. Keating (British Mysteries) (Police Procedurals)
- Martha Beale series by Cordelia Francis Biddle (Historical Mysteries: 1800s)
- Martha Patterson series by Gretchen Sprague (Amateur Sleuths: Seniors & Sweet Old Ladies)
- Martha's Vineyard series by Philip R. Craig (Regional Mysteries: Massachusetts)
- Martha's Vineyard series by Cynthia Riggs (Amateur Sleuths: Seniors) (Regional Mysteries: Massachusetts)
- Marti Hirsch series by Miriam Ann Moore (Humorous Mysteries)
- Marti McAllister series by Eleanor Taylor Bland (African-American Mysteries) (Spunky Women Sleuths)
- Martin Beck series by Maj Sjöwall & Per Wahlöö (Regional Mysteries: Sweden)
- Martin, Cézanne series by Laurie Moore (Humorous Mysteries)
- Martin, Dorothy series by Jeanne M. Dams (Amateur Slueths: Seniors) (Cozy Mysteries)
- Martin Jerrold series by Edwin Thomas (Military & Naval Adventure)
- Martin, Rina series by Jane A. Adams (Cozy Mysteries)
- Martin, Pepper series by Casey Daniels (Paranormal Mysteries)
- Martin, Saz series by Stella Duffy (Lesbian Mysteries)
- Martinez, Stephen series by Henry Kisor (Regional Mysteries: Michigan)
- Martinsson, Rebecka series by Asa Larson (Regional Mysteries: Sweden)
- Martinus Harinxma series by Jan deHartog (Military & Naval Adventure) (Novels of Character) (War/Military)
- Marty Nickerson series by Rose Connors (Courtroom Mysteries)
- Marvelli, Frank & Kovacs, Loretta series by Anthony Bruno (Humorous Mysteries) (Humorous Thrillers)
- Marvia Plum & Hobart Lindsey series by Richard A. Lupoff (Antiques & Collectibles Mysteries)
- Marx, Groucho series by Ron Goulart (Humorous Mysteries)
- Mary and Moor series by Sharon Ewell Foster (Christian Romances)
- Mary Ann series by Catherine Cookson (Historical Romances)
- Mary Crow series by Sallie Bissell (Contemporary Women's Psychological Suspense) (Native American Mysteries) (Psychological Suspense)
- Mary Finch series by Rose Melikan (Espionage)
- Mary Helen, Sister series by Sister Carol Ann O'Marie (Clerical Mysteries)
- Mary Magruder Katz series by Barbara Levenson (Legal Thrillers)
- Mary Russell series by Laurie King (Sherlock Holmes & Friends)
- Mary Ryan series by Claire Johnson (Culinary Mysteries)
- Mary Teresa Dempsey, Sister series by Monica Quill (Clerical Mysteries)
- Mas Arai series by Naomi Hirahara (East Asian Interest) (Past & Present Mysteries)
- Masada series by Ernest K. Gann (Historical Fiction: Ancient Rome)
- Masefield, Genevieve & Dillman, George Porter series by Conrad Allen (Historical Mysteries: 1900-1919)
- Mason Kemp, Commodore John series by Philip McCutchan (Military & Naval Adventure)
- Mason, Perry series by Erle Stanley Gardner (Courtroom Mysteries)
- Massey, Cuno series by Peter Brandvold (Outlaws & Lawmen)
- Massey, Winter series by John Ramsey Miller (Fugitives/On the Run)
- Master, Beast series by Andre Norton (Adventure SF) (Animal Companions) (Anthropomorphic SF) (Biological SF) (ESP/Psionics)
- Master Li series by Barry Hughart (Multicultural Fantasy)
- Master Mariner series by Nicholas Monsarrat (Military & Naval Adventure)
- Master of Defence series by Peter Tonkin (Historical Mysteries: Elizabethan)
- Masters, Caroline & Paget, Christopher series by Richard North Patterson (Legal Thrillers)
- Masters, Elemental series by Mercedes Lackey (Historical Fantasy)
- Masters of Rome series by Colleen McCullough (Historical Fiction: Ancient Rome)
- Matarese series by Robert Ludlum (Espionage)
- Matchmaker series by Jane Feather (Historical Romances)
- Matchmaker, Traveling series by Marion Chesney (Regency Romacnes)
- Matelli, Angela series by Wendi Lee (Hardboiled Detectives)
- Materials, His Dark series by Philip Pullman (Children's Fantasy) (Gates Between Worlds) (Steampunk)
- Matilda Black series by Nina Kiriki Hoffman (Mostly Magical)
- Matinova, Jana series by Michael Genelin (Regional Mysteries: Slovakia)
- Matt Arnold series by Sarah Cox (British Mysteries)
- Matt Cruse series by Kenneth Oppel (Adventure SF) (Steampunk)
- Matt Minogue series by John Brady (Regional Mysteries: Ireland)
- Matt O'Connor series by John McEvoy (Horses & Horseracing Mysteries)
- Matt Pontowski series by Richard Herman (Technothrillers)
- Matt Royal series by H. Terrell Griffin (Regional Mysteries: Florida)
- Mattagash, Maine series by Cathie Pelletier (Southern/Small Town Humor)
- Matter, Dark series by various authors (Paranormal Thrillers) (SF/Horror) (Skull Beneath the Skin)
- Matter, Ecolitan series by L.E. Modesitt, Jr. (Ecological/Environmental SF)
- Matthew & Joan Stock series by Leonard Tourney (Historical Mysteries: Elizabethan)
- Matthew Bartholomew series by Susanna Gregory (Historical Mysteries: 14th Century)
- Matthew Corbett series by Robert McCammon (Historical Fiction: 1600s) (Notable Historical Mysteries) (Psychological Suspense)
- Matthew Jankyn series by P.C. Doherty (Historical Mysteries: 15th Century)
- Matthew Scudder series by Lawrence Block (Hardboiled Detectives)
- Matthew Shardlake series by C.J. Sansom (Historical Mysteries: 16th Century) (Notable Historical Mysteries)
- Matthews, Daphne & Boldt, Lou series by Ridley Pearson (Forensic Detectives) (Police Procedurals)
- Matthews, Nell series by Eve K. Sandstrom (Amateur Sleuths)
- Mattias Tannhauser series by Tim Willocks (Epic Sagas) (Historical Fiction: 1500s)
- Mattie Winston series by Annelise Ryan (Forensic Detectives)
- Mattimoe, Whiskey series by Nina Wright (Amateur Sleuths)
- Maturin & Aubrey series by Patrick O'Brian (Military & Naval Adventure)
- Maura Isles & Jane Rizzoli series by Tess Gerritsen (Forensic Detectives) (Psycho-Killer Thrillers)
- Maureen O'Donnell series by Denise Mina (British Mysteries) (Spunky Women Sleuths)
- Maureen Paschal series by Kathleen McGowan (Clerical/Church Thrillers) (Conspiracy Thrillers) (Long-Lost Manuscripts)
- Maus series by Art Spiegelman (Graphic Novels) (Nazi Holocaust)
- Max Diamond series by Arthur Rosenfeld (Hardboiled Detectives)
- Max Freeman series by Jonathon King (Psycho-Killer Thrillers) (Regional Mysteries: Florida)
- Maxey Burnell series by Carol Cail (Regional Mysteries: Colorado)
- Maxi Poole series by Kelly Lange (Spunky Women Sleuths)
- Maxie & Stretch series by Sue Henry (Amateur Sleuths: Seniors) (Animal Mysteries)
- Maximum Ride series by James Patterson (Junior Bestsellers) (Medical Thrillers) (Science Thrillers)
- Maxwell, Brick series by Robert Gandt (Technothrillers)
- Maxwell, Johnny series by Terry Pratchett (Children's Fantasy)
- Maxwell, Kline series by S. Andrew Swann (Elfpunk/Urban Fantasy) (Fantasy Mysteries)
- Maxwell, Michelle series by David Baldacci (Psycho-Killer Thrillers) (Psychological Suspense)
- Maxwells series by Sidney Sheldon (Rich & Famous: Power & Revenge)
- Mawrdew Czgowchwz series by James McCourt (Gay Male Interest) (Historical Fiction: 1950s) (Musical Fiction)
- May series by Galaxy Craze (Coming of Age)
- May Alcott, Louisa series by Anna MacLean (Author as Sleuth) (Historical Mysteries: 19th Century)
- May, John & Bryant, Arthur series by Christopher Fowler (British Mysteries)
- Maya Greenwood series by Starhawk (New Age)
- Mayfair Square series by Stella Cameron (Regency Romances)
- Mayfair Witches series by Anne Rice (Vampyre Gothic)
- Mayo, Gil series by Marjorie Eccles (British Mysteries) (Cozy Mysteries)
- McAllister Files series by Patricia H. Rushford & Harrison James (Christian Mysteries)
- McAllister, John series by Charles R. Crawford (Regional Mysteries: Tennessee)
- McAllister, Marti series by Eleanor Taylor Bland (African-American Mysteries) (Spunky Women Sleuths)
- McAvoy, Ed series by Bill Stackhouse (Regional Mysteries: New York State)
- McCabe, Cassidy series by Alex Matthews (Amateur Sleuths) (Spunky Women Sleuths)
- McCaffrey, Selena series by Rachel Butler (Spunky Women Sleuths)
- McCain series by Howard Owen (Novels of Character)
- McCain, Sam series by Ed Gorman (Historical Mysteries: 1950s) (Musical Mysteries)
- McCall, Diamondback series by Robert Middleton (Hired Man on Horseback)
- McCallum, Duncan series by Eliot Pattison (Historical Mysteries: 18th Century)
- McCarthy, Gail series by Laura Crum (Animal Mysteries)
- McCaulay, Jay series by C.J. Carver (Romantic Suspense)
- McCauley, Quint series by D.C. Brod (Hardboiled Detectives)
- McClaren's Isle series by Connie Brockway (Highland Romances)
- McClellan Family series by Jo Goodman (Historical Romances)
- McClelland, Marjorie series by Amy Patricia Meade (Historical Mysteries: 1930s) (Upper Crust Mysteries)
- McClintoch, Lara series by Lyn Hamilton (Archaeological Mysteries)
- McCloud Brothers series by Shannon McKenna (Erotica) (Romantic Suspense)
- McClure, Jack series by Eric Van Lustbader (Political Thrillers)
- McCone, Sharon series by Marcia Muller (Police Procedurals) (Spunky Women Sleuths)
- McCormick, Nathaniel series by Joshua Spanogle (Medical Thrillers)
- McCoskey, Sunny series by Nadia Gordon (Regional Mysteries: California)
- McCracken, Blaine series by Jon Land (Espionage) (Bond. James Bond)
- McDade series by Cindy Bonner (Historical Fiction: 1800s) (Historical Romances)
- McDonald, Tess series by Donna Hill (Missions of Vengeance) (Sistahs)
- McGarr, Peter series by Bartholomew Gill (Police Procedurals) (Regional Mysteries: Ireland)
- McGarvey, Kirk series by David Hagberg (International Intrigue)
- McGee, Travis series by John D. MacDonald (Hardboiled Detectives) (Regional Mysteries: Florida)
- McGill, Leonid series by Walter Mosley (Hardboiled Detectives)
- McGillycuddy, Valentine series by Dan O'Brien (Historical Fiction: 1800s) (Native American Interest)
- McGrail, Nuala Anne series by Andrew Greeley (Amateur Sleuths: Couples) (Paranormal Mysteries)
- McGraw, Hailey & Muller, Lexie series by Kayla Perrin and Brenda Mott (Humorous Mysteries)
- McInnes, Tom series by Mike Stewart (Regional Mysteries: Alabama)
- McIntire, John series by Kathleen Hills (Historical Mysteries: 1950s) (Regional Mysteries: Wisconsin)
- McIsaac, Libby series by Yvonne Collins & Sandy Rideout (Sex & the Single [or Married] Person)
- McKaslein Clan series by Jillian Hart (Christian Romances)
- McKelvey, Kel series by Thomas Holland (Forensic Detectives)
- McKenna, Michael series by Alison G. Taylor (British Mysteries)
- McKenzie Chronicles series by Heather Graham (Historical Romances) (Sweet & Savage Romances)
- McKenzie, Greg series by Chester Campbell (Regional Mysteries: Tennessee)
- McKenzie, Joanna series by Margaret Duffy (British Msyteries)
- McKenzie, Lydia series by Meredith Cole (Spunky Women Sleuths)
- McKenzie, Rushmore series by David Housewright (Hardboiled Detectives) (Regional Mysteries: Minnesota)
- McKettrick series by Linda Lael Miller (Cowboy Romances)
- McKinnon, Kate series by Jonathan Santlofer (Art Mysteries) (Psycho-Killer Thrillers)
- McKnight, Alex series by Steve Hamilton (Regional Mysteries: Michigan)
- McLanahan, Patrick series by Dale Brown (International Intrigue) (Technothrillers)
- McLendon, Maggie series by Dean James (Academic Mysteries)
- McLeod Delaney series by Ann Waldron (Academic Mysteries)
- McMullen, Christina series by Lois Greiman (Romantic Suspense)
- McMorrow, Jack series by Gerry Boyle (Hardboiled Detectives)
- McNally, Archy series by Lawrence Sanders (Espionage)
- McNulty, Brian series by Con Lehane (Amateur Sleuths) (Historical Mysteries: 1980s) (Regional Mysteries: New York City)
- McQueen, Dennis series by Robert J. Randisi (Police Procedurals)
- Meade, Ben series by Richard Moran (Disaster Epics)
- Meade, Lois series by Ann Purser (British Mysteries) (Calendar/Holiday Mysteries)
- Meadows, Karen & Kelly, John series by Hilary Bonner (British Mysteries)
- Meadows, Liberty series by Frank Cho (Graphic Novels)
- Measle series by Ian Ogilvy (Children's Fantasy)
- Meaux, Abbess of, series by Cassandra Clark (Historical Mysteries: Middle Ages)
- MechWarrior series by various authors (SF: Games & Gaming)
- MechWarrior Dark Age series by various authors (SF: Games & Gaming)
- Medici, Catherine de' series by Michaela Roessner (Historical Fantasy)
- Medieval Murderers series by The Medieval Murderers (Historical Mysteries: Middle Ages)
- Medieval Mystery series by Joan Wolf (Historical Mysteries: 12th Century)
- Medieval Oxford series by Ian Morson (Historical Mysteries: 13th Century)
- Medstar series by Michael Reaves & Steve Perry (Star Wars)
- Medway, Bruce series by Robert Wilson (Regional Mysteries: West Africa)
- Meehan, Paddy series by Denise Mina (British Mysteries)
- Meehan, Tony series by Jake Arnott (British Mysteries) (Gay Male Interest) (Mean Streets) (Pulp Fictions)
- MEG series by Steve Alten (Claws and Jaws)
- Meg Darcy series by Jean Marcy (Lesbian Mysteries) (Regional Mysteries: Missouri)
- Meg Gillis series by C.J. Songer (Spunky Women Sleuths)
- Meg Langslow series by Donna Andrews (Animal Mysteries) (Humorous Mysteries)
- Megan Clark series by D.R. Meredith (Books & Publishing Industry Mysteries) (Libraries and Librarians)
- Megan Rhys series by Lindsay Jayne Ashford (Forensic Detectives)
- Mei Lin, Kwan series by C. Hope Flinchbaugh (Christian Inspirational)
- Mei Wang series by Diane Wei Liang (Regional Mysteries: China)
- Meier's (Sid) Alpha Centauri series (Games & Gaming SF)
- Meiklejohn, Charlie and Leidl, Constance series by Kate Wilhelm (Amateur Sleuths: Couples) (Paranormal Mysteries)
- Mel Pickett series by Eric Wright (Police Procedurals) (Regional Mysteries: Canada)
- Melanie & Charles Fraser series by Tracy Grant (Historical Fiction: 1800s) (Historical Mysteries: 1800s) (Notable Historical Mysteries)
- Melanie Travis series by Laurien Berenson (Animal Mysteries)
- Melanie Vargas series by Michele Martinez (Spunky Women Sleuths)
- Melissa series by Melissa P. (Erotica) (International Bestsellers)
- Melissa and Rep Pennyworth series by Michael Bowen (Amateur Sleuths: Couples)
- Mellingham series by Susan Oleksiw (Regional Mysteries: Massachusetts)
- Melniboné, Elric of, series by Michael Moorcock (Eternal Champion Multiverse) (Sword & Sorcery)
- Melusine series by Sarah Monette (Mostly Magical) (Unreal Cities)
- Melville, Miss series by Evelyn E. Smith (Rogues)
- Membership, Port William series by Wendell Berry (Pastoral Fiction)
- Memoirs of a Bank Street Runner series by T.F. Banks (Historical Mysteries: 19th Century)
- Memoirs of John H. Watson series by Nicholas Meyer (Sherlock Holmes & Friends)
- Memories, Rocky Mountain series by Lori Wick (Christian Romance)
- Memory-Challenged Sleuth series by Elizabeth Daniels Squire (Humorous Mysteries)
- Memory of Flames series by Stephen Deas (Dragons)
- Memory, Sorrow and Thorn series by Tad Williams (Epic Fantasy)
- Men at War series by W.E.B. Griffin (Fighting Forces & Special Ops)
- Men of Praise series by Gail Sattler (Christian Romances)
- Men of the Saddle series by Lori Copeland (Christian Westerns)
- Men, Straw series by Michael Marshall (Conspiracy Thrillers)
- Men, Wee Free series by Terry Pratchett (Children's Fantasy)
- Menagerie series by Christopher Golden & Thomas E. Sniegoski (Dark Fantasy)
- Mendoza, Luis series by Dell Shannon (Police Procedurals) (Regional Mysteries: Los Angeles)
- Menedemos & Sostratos series by H.N. Turteltaub (Historical Fiction: Ancient Greece)
- Meq series by Steve Cash (Historical Fantasy)
- Mercenaries, Morgan's series by Lindsay McKenna (Romantic Suspense)
- Mercenary Corps, Dirigent (DMC) series by Rick Shelley (Military/War SF)
- Mercer Early series by Christopher Darden & Dick Lochte (Legal Thrillers)
- Mercer, Philip series by Jacques du Brul (James Bond)
- Merchant, Jack & Ballard, Sarah series by Bill Eidson (Boating/Sailing Mysteries) (Hardboiled Detectives)
- Merchant Prince series by Armin Shimerman (Alternate History) (Trips in Time)
- Merchant Princes series by Charles Stross (Epic Fantasy) (Science Fantasy) (Uneasy Lies the Head)
- Merchants, Space series by Frederik Pohl & C.M. Kornbluth (Advertising Industry) (Psychological/Sociological SF) (Satire SF)
- Merci Rayborn series by T. Jefferson Parker (Police Procedurals) (Psychological Suspense) (Regional Mysteries: California)
- Mercy and Fitzgerald series by Ronald Weber (Sports Mysteries)
- Mercy, Angel of, series by Al Lacy (Christian Historical)
- Mercy, Scepter of, series by Dan Chernenko (Epic Fantasy) (Uneasy Lies the Head)
- Mercy Thompson series by Patricia Briggs (Paranormal Mysteries) (Shapechangers/Shapeshifters)
- Meredith Gentry series by Laurell K. Hamilton (Elfpunk/Urban Fantasy) (Erotic Fantasy) (Erotica) (Realm of Faerie)
- Meren, Lord series by Lynda S. Robinson (Historical Mysteries: Ancient Egypt)
- Meritocracy series by Jeffrey Lewis (Historical Fiction: 20th Century)
- Merlin Codex series by Robert Holdstock (King Arthur & Camelot)
- Merlin, Lost Years of, series by T.A. Barron (Children's Fantasy)
- Merlin's Descendants series by Irene Radford (King Arthur & Camelot)
- Merovingen Nights series edited by C.J. Cherryh (SF Shared Worlds/Franchised Worlds)
- Merrimack, Tour of the, series by R.M. Meluch (Military/War SF) (Space Opera)
- Merrily Watkins series by Phil Rickman (Clerical Mysteries) (Paranormal Mysteries)
- Merry Widows series by Candice Hern (Regency Romances)
- Meryen series by Gloria Cook (Epic Sagas)
- Metaplanetary series by Tony Daniel (Bigger Than Worlds) (Military/War SF) (Religious/Philosophical SF)
- Metropolis series by Lonnie Cruse (Regional Mysteries: Illinois)
- Metropolis, Sofie series by Tori Carrington (Humorous Mysteries)
- Mexico, New series by P.G. Nagle (Historical Fiction: Civil War)
- Micah Dalton series by David Stone (Espionage)
- Mice, Deptford series by Robin Jarvis (Anthropomorphic Fantasy)
- Michael Angel series by Roger Silverwood (British Mysteries)
- Michael Carolina series by Thomas Briody (Regional Mysteries: Rhode Island)
- Michael Danton series by Norman Bogner (Psychological Suspense)
- Michael DeCastro series by Randall Peffer (Gay Male Mysteries) (Regional Mysteries: Thailand) (Transgender Interest)
- Michael Flannery series by Paul Block & Robert Vaughan (Clerical/Church Thrillers) (Conspiracy Thrillers) (Long-Lost Manuscripts & Other Antiquities)
- Michael Forsythe series by Adrian McKinty (Mean Streets)
- Michael Kane series by Michael Moorcock (Mars) (Science Fantasy)
- Michael Keever series by Tom LeClair (Sports Thrillers)
- Michael Kelly series by Michael Harvey (Mean Streets)
- Michael McKenna series by Alison G. Taylor (British Mysteries)
- Michael Ohayon series by Batya Gur (Regional Mysteries: Israel)
- Michael Osbourne series by Daniel Silva (Espionage)
- Michael, Robert, and Monette series by David Stukas (Gay Male Mysteries) (Humorous Mysteries) (Lesbian Mysteries)
- Michael Seeley series by Paul Goldstein (Legal Thrillers)
- Michael Spraggue III series by Linda Barnes (Hardboiled Detectives)
- Michael Stone series by Anna Salter (Forensic Detectives)
- Michaels, Ian series by Keith Raffel (Regional Mysteries: California)
- Michelle Maxwell series by David Baldacci (Psycho-Killer Thrillers) (Psychological Suspense)
- Michigan, University of series by Susan Holtzer (Academic Mysteries) (Regional Mysteries: Michigan)
- Mici Anhalt series by Lillian O'Donnell (Hardboiled Detectives)
- Mick Sever series by Don Bruns (Musical Mysteries)
- Mickey Haller series by Michael Connelly (Legal Thrillers)
- Micky Knight series by J.M. Rodman (Hardboiled Detectives)
- Mickey Rawlings series by Troy Soos (Sports Mysteries)
- Middle-Earth, History of, series by J.R.R. Tolkien (Epic Fantasy) (Mythic/Mythopoeic Fantasy)
- Midkemia series by Raymond Feist (Epic Fantasy)
- Midnight series by Sidney Sheldon (Rich & Famous: Power & Revenge)
- Midnight, Brenda series by Barbara Jaye Wilson (Humorous Mysteries)
- Midnight Cab series by James W. Nichol (Amateur Sleuths) (Regional Mysteries: Canada)
- Midnight Louie series by Carole Nelson Douglas (Cat Mysteries)
- Midnight Twins series by Jacquelyn Mitchard (Junior Bestsellers)
- Midnighters series by Scott Westerfeld (Children's Fantasy)
- Mifflin, Roger series by Christopher Morley (Books & Publishing Industry Mysteries) (Comedies of Manners) (Writers/Publishing Industry)
- Might & Magic series by various authors (Dungeons & Dragons & Dice)
- Mignon Samuels series by Nea A. Simone (African-American Interest) (Family Sagas)
- Mike, Big series by Garrison Allen (Cat Mysteries)
- Mike Daley series by Sheldon Siegel (Legal Thrillers)
- Mike Devlin series by Paul Lindsay (Espionage)
- Mike Hammer series by Mickey Spillane (Hardboiled Detectives)
- Mike Lomax & Terry Biggs series by Marshall Karp (Humorous Mysteries)
- Mike, Mrs. series by Benedict & Nancy Freedman (Native American Interest) (Non-Christian Inspirational)
- Mike Turner series by Connie Dial (Police Procedurals)
- Mike Yeadings series by Clare Curzon (British Mysteries)
- Mike Yeager series by Thomas Lakeman (Psychological Suspense)
- Mikhail Lammeck series by David L. Robbins (Espionage)
- Milan Jacovich series by Les Roberts (Regional Mysteries: Cleveland)
- Mile, Green series by Stephen King (Belly of the Beast) (Magical Realism) (Non-Christian Inspirational)
- Miles Jacoby series by Robert J. Randisi (Hardboiled Detectives)
- Miles, Jimmy series by Dan Vining (Paranormal Mysteries)
- Miles Vorkosigan series by Lois McMaster Bujold (SF: Military/War)
- Milius, Alec series by Charles Cumming (Espionage)
- Millennium series by Stieg Larsson (Regional Mysteries: Sweden)
- Millennium series by Paul Meier (Millennial/Apocalyptic Fiction)
- Millennium Quartet series by Charles Grant (Millennial/Apocalyptic Fiction)
- Miller, Brad & Cutler, Dana series by Philip Margolin (Political Thrillers)
- Miller, Christopher series by Christ Grabenstein (Holiday Mysteries) (Mean Streets)
- Miller, Dale & Payne, Charley series by Marcus Wynne (Espionage)
- Millhone, Kinsey series by Sue Grafton (Hardboiled Detectives) (Spunky Women Sleuths)
- Million Dollar series by RM Johnson (Romantic Supsense)
- Million Dollar Mysteries series by Mindy Starns Clark (Christian Mysteries)
- Mills, Shirley Ferris series by Sharon Ewell Foster (Christian Historical)
- Mills, Todd series by R.D. Zimmerman (Gay Male Mysteries)
- Millson & Scobie series by Malcolm Forsythe (British Mysteries)
- Millwood Hollow series by Patricia Hickman (Christian Historical Fiction)
- Milo Milodragovitch series by James Crumley (Hardboiled Detectives) (Regional Mysteries: Montana)
- Milodragovitch, Milo series by James Crumley (Hardboiled Detectives) (Regional Mysteries: Montana)
- Milt Kovak series by Susan Rogers Cooper (Regional Mysteries: Oklahoma)
- Mine, Old Gang of series by Richard F. West (Amateur Sleuths: Seniors)
- Ministry is Murder series by Emilie Richards (Clerical Mysteries)
- Minogue, Matt series by John Brady (Regional Mysteries: Ireland)
- Minty Lloyd series by Elizabeth Buchan (Picking Up the Pieces)
- Miracle Girls series by Nami Akimoto (Anime/Manga)
- Miracle, Tori series by Valerie S. Malmont (Culinary Mysteries) (Humorous Mysteries)
- Miranda Popescu series by Paul Park (Otherworld Historical Fantasy)
- Miriam Blaylock series by Whitley Strieber (Vampyre Gothic)
- Mirror, View From the, series by Ian Irvine (Epic Fantasy)
- Mirrored Heavens series by David J. Williams (Cyberpunk)
- Miscellany, Knight series by Gaelen Foley (Regency Romaces)
- Misdemeanor Man series by Dylan Schaffer (Legal Thrillers)
- Miss Julia series by Ann B. Ross (Southern/Small Town Humor)
- Miss Marple series by Agatha Christie (Cozy Mysteries)
- Miss Melville series by Evelyn E. Smith (Rogues)
- Miss Zukas series by Jo Dereske (Books & Publishing Industry Mysteries) (Libraries & Librarians)
- Missing Link series by Kate Thompson (Young Adult SF)
- Mississippi Delta series by Carolyn Haines (Humorous Mysteries) (Regional Mysteries: Mississippi)
- Mistborn series by Brandon Sanderson (Uneasy Lies the Head)
- Mistmantle Chronicles by M.I. McAllister (Anthropomorphic Fantasy) (Children's Fantasy)
- Mister & Mrs. Bridge series by Evan S. Connell (Ties That Bind: Unhappy Families)
- Mister Ripley series by Patricia Highsmith (Psychological Suspense)
- Mistress of the Art of Death series by Ariana Franklin (Historical Fiction: Middle Ages) (Historical Mysteries: Middle Ages) (Notable Historical Mysteries)
- Misty & Reesy series by Lolita Files (Sistahs)
- Mitch Berger & Desiree Mitry series by David Handler (Regional Mysteries: Connecticut)
- Mitch Rapp & Irene Kennedy series by Vince Flynn (Political Thrillers) (Terrorism Thrillers)
- Mitch Roberts series by Gaylord Dold (Hardboiled Detectives)
- Mitch Webber series by Judith & Garfield Reeves-Stevens (Technothrillers)
- Mitchell and Markby series by Ann Granger (British Mysteries)
- Mitchell, Frank & Packham, Don series by Mat Coward (British Mysteries)
- Mitchell Gant series by Craig Thomas (Techno-Thrillers)
- Mitford series by Jan Karon (Christian Gentle Reads) (Pastoral Fiction)
- Mithgar series by Dennis L. McKiernan (Epic Fantasy)
- Mitry, Desiree & Berger, Mitch series by David Handler (Regional Mysteries: Connecticut)
- Mo Ford series by Daniel Hecht (Medical Thrillers) (Psychological Suspense)
- Mobile Library series by Ian Sansom (Libraries & Librarians) (Regional Mysteries: Ireland)
- Mobile Suit Gundam Wing series by Katsuyuki Sumisawa (Anime/Manga)
- Mobile Suit Gundam Wing series by Koichi Tokita (Anime/Manga)
- Mode series by Piers Anthony (Adventure Fantasy)
- Modern Comedy Trilogy by John Galsworthy (Family Sagas: England/Ireland/Scotland)
- Modern Twilight, A Chronicle of, series by Fredinand Mount (Historical Fiction: Humorous) (Sports Fiction)
- Modesty Blaise series by Peter O'Donnell (Bond. James Bond)
- Moe Prager series by Reed Farrel Coleman (Hardboiled Detectives)
- Moffat, Claire & MacLaren, Colin series by Marion Zimmer Bradley (Paranormal Thrillers)
- Moghul, Empire of the series by Alex Rutherford (Historical Fiction: 1500s)
- Moghul India series by John Speed (Epic Sagas) (Indian & Indian-American Interest)
- Mole, Adrian series by Sue Townsend (British Humor) (Epistolary Fiction) (International Bestsellers)
- Molloy, Jack series by Mike Lupica (Sports Humor)
- Molly Blume series by Rochelle Krich (Graphic Novels) (Regional Mysteries: Los Angeles) (Spunky Women Sleuths)
- Molly Burke series by Eileen Dreyer (Medical Thrillers)
- Molly Doyle series by Elaine Flinn (Antiques Mysteries)
- Molly Forrester series by Sheryl J. Anderson (Humorous Mysteries)
- Molly Murphy series by Rhys Bowen (Historical Mysteries: 19th Century) (The Immigrant Experience)
- Molly Piper series by Patricia Brooks (Spunky Women Sleuths)
- Molly Power & Jim Quilligan series by Andrew Nugent (Regional Mysteries: Ireland)
- Molly Smith series by Vicki Delany (Regional Mysteries: Canada)
- Molokans series by Julia Shuken (Christian Historical)
- Mom Zone series by Sara Rosett (Amateur Sleuths: Housewives)
- Mommy-Track series by Ayelet Waldman (Humorous Mysteries)
- Monaghan, Tess series by Laura Lippman (Regional Mysteries: Maryland) (Spunky Women Sleuths)
- Monarchies of God series by Paul Kearney (Adventure Fantasy) (Epic Fantasy) (Uneasy Lies the Head)
- Mondia, Annals of, series by Tim Stretton (Fantasy Mysteries)
- Monere series by Sunny (Erotic Fantasy)
- Monet, Claude series by Jane Jakeman (Historical Mysteries: 1900-1919)
- Monette, Michael, and Robert series by David Stukas (Gay Male Mysteries) (Humorous Mysteries) (Lesbian Mysteries)
- Monique, Cynthia, Roxanne, & Gayle series by Sharon Mitchell (Sistahs)
- Monk, Ivan series by Gary Phillips (African-American Mysteries)
- Monk, William series by Anne Perry (Historical Mysteries: Victorian)
- Monkeewrench series by P.J. Taylor (Humorous Thrillers)
- Monks, Carroll series by Neil McMahon (Medical Thrillers)
- Monroe, Jackson series by Richard H. Dickinson (Fighting Forces & Special Ops) (Vietnam War)
- Monsieur Pamplemousse series by Michael Bond (Culinary Mysteries)
- Monster Island series by David Wellington (Back From the Grave)
- Montalbano, Salvo series by Andrea Camilleri (Regional Mysteries: Italy)
- Montana series by Ivan Doig (Family Sagas: Various Locations)
- Montana, Heirs of, series by Tracie Peterson (Christian Historical)
- Montella, Pat series by Helen Santangelo (Paranormal Mysteries)
- Montenegro series by Starling Lawrence (Military & Naval Adventure)
- Montero, Ari series by Susan Hubbard (Vampyre Gothic)
- Montero, Britt series by Edna Buchanan (Regional Mysteries: Florida)
- Montez, Luis series by Manuel Ramos (Hispanic Interest)
- Montgomery Family series by Jude Deveraux (Family Sagas: English/Irish/Scottish)
- Montgomery, Kellie series by Valerie Wilcox (Sailing Mysteries)
- Montgomery, Laurie & Stapleton, Jack series by Robin Cook (Medical Thrillers)
- Montgomery, Lucie series by Ellen Crosby (Amateur Sleuths)
- Month, Murder by, series by Jess Lourey (Holiday Mysteries)
- Montrose, Claire series by April Henry (Humorous Mysteries)
- Monty Collins series by Anne Emery (Regional Mysteries: Canada)
- Moodrow, Stanley series by Stephen Solomita (Hardboiled Detectives) (Mean Streets)
- Moon series by Lori Handeland (Romantic Fantasy) (Shapechangers/Shapeshifters)
- Moon, Boreal series by Julian May (Epic Fantasy)
- Moon, Charlie series by James Doss (Clerical Mysteries) (Native American Mysteries)
- Moon, Daughters of the, series by Lynne Ewing (Children's Fantasy)
- Moon, Phyllida series by Eileen Dewhurst (British Mysteries)
- Moon, Sailor series by Naoko Takeuchi (Anime/Manga)
- Mooney, Stella series by David Lawrence (British Mysteries) (Mean Streets)
- Moons, Dakota series by Stephanie Grace Whitson (Christian Historical)
- Moons, House of, series by K.D. Wentworth (ESP & Psionics)
- Moonworlds series by Sean McMullen (Epic Fantasy)
- Moor and Mary series by Sharon Ewell Foster (Christian Romances)
- Moore, Eden series by Cherie Priest (Dark Fantasy)
- Moore, Rebecca series by Judith Skillings (Regional Mysteries: Washington, DC) (Spunky Women Sleuths)
- Moore, Sherry series by George D. Shuman (Paranormal Thrillers) (Psycho-Killer Thrillers)
- Moore, Ulysses series by Pierdomenico Baccalario (Children's Fantasy)
- Moore, Vernon series by George Shaffner (Christian Inspirational) (Pastoral Fiction)
- Moosepath League series by Van Reid (Historical Fiction: 1800s) (Pastoral Fiction)
- Mordant's Need series by Stephen R. Donaldson (Epic Fantasy)
- Mordred series by Douglas Clegg (King Arthur & Camelot)
- More, Stay series by Donald Harington (Southern/Small Town Humor)
- Moreland series by Candace Camp (Historical Romances)
- Morelli, Professor Teodora series by Linda French (Academic Mysteries) (Humorous Mysteries)
- Morgaine series by C.J. Cherryh (Gates Between Worlds) (Realm of Faerie)
- Morgan, Arnold series by Patrick Robinson (Techno-Thrillers)
- Morgan Brothers series by Nancy J. Parra (Historical Romances: American West/Frontier)
- Morgan, Claire series by Linda Ladd (Spunky Women Sleuths)
- Morgan Family series by Nancy F. Parra (Contemporary Romances)
- Morgan, Morris series by Ivan Doig (Historical Fiction: 1900-1919) (Modern West)
- Morgan, Rachel series by Kim Harrison (Vampyre Gothic)
- Morgan, Taylor series by Megan Mallory Rust (Regional Mysteries: Alaska)
- Morgan Taylor series by Susan Sussman & Sarajane Avidon (Theater Mysteries)
- Morgan's Mercenaries series by Lindsay McKenna (Romantic Suspense)
- Morgon, Louis series by Peter Steiner (Espionage)
- Morgue Mama series by C.R. Corwin (Amateur Sleuths: Seniors)
- Mori, Kazuo series by Peter Tasker (Regional Mysteries: Japan)
- Moriarty series by John Gardner (Sherlock Holmes & Friends)
- Morland Dynasty series by Cynthia Harrod-Eagles (Historical Romances)
- Morland and Holroyd series by Ann Quinton (British Mysteries)
- Morley, Simon series by Jack Finney (Time Travel Romances)
- Morning Shade series by Lori Copeland (Christian Mysteries)
- Morning, Tuesday series by Karen Kingsbury (Christian Inspirational) (September 11, 2001)
- Morris Duckworth series by Tim Powers (Magical Realism) (Rogues) (Tragicomedy)
- Morris Morgan series by Ivan Doig (Historical Fiction: 1900-1919) (Modern West)
- Morriss, Bev series by Maureen Carter (British Mysteries)
- Morrissey, Jimmy series by Michael Fredrickson (Legal Thrillers)
- Morse, Inspector series by Colin Dexter (British Mysteries) (PBS Miniseries)
- Morse and Mallory series by Forrest DeVoe, Jr. (Bond. James Bond)
- Mortdecai, Charlie series by Kyril Bonfiglioli (Art Mysteries) (British Humor) (Humorous Mysteries)
- Mortimer, Dr. series by Gerard Williams (Historical Mysteries: Victorian)
- Mosaic, Sarantine series by Guy Gavriel Kay (Historical Fantasy)
- Moses Wine series by Roger L. Simon (Hardboiled Detectives)
- Moses, Zen series by Elizabeth M. Cosin (Hardboiled Detective)
- Moshui, the Books of Stone and Water series by Daniel Fox (Dragons) (Multicultural Fantasy)
- Mosley, Whit series by Jeff Abbott (Regional Mysteries: Texas)
- Moss Family series by Beth Gutcheon (Family Sagas: Various Locations)
- Moss, Lenny series by Timothy Sheard (Amateur Sleuths)
- Mossy Creek series by various authors (Pastoral Fiction)
- Mote series by Larry Niven & Jerry Pournelle (Alien Beings)
- Mother Earth/Father Sky series by Sue Harrison (Prehistoric Fiction)
- Mother Lavinia Grey series by Kate Gallison (Clerical Mysteries)
- Motorman series by David Ohle (Dystopian Futures)
- Mountain, Adirondack series by S.W. Hubbard (Regional Mysteries: New York)
- Mountain, Kentucky series by Janice Holt Giles (Wagons West)
- Mountain Legacy, Rocky series by Kristen Heitzmann (Christian Historical Fiction)
- Mountain Man series by William W. Johnstone (Mountain Men)
- Mountain Man, First series by William W. Johnstone (Mountain Men)
- Mountain Memories, Rocky series by Lori Wick (Christian Romance)
- Mountain, Rocky series by Nicole Jordan (Historical Romances)
- Mountains, White series by Tom Eslick (Regional Mysteries: New Hampshire)
- Mountford, Suzie & Livermore, Tommy series by John Gardner (British Mysteries) (Historical Mysteries: 1940s)
- Mouser, Fafhrd and the Grey series by Fritz Leiber (Sword & Sorcery)
- Movers, Body series by Stephanie Bond (Humorous Mysteries)
- Mr. & Mrs. Bridge series by Evan S. Connell (Ties That Bind: Unhappy Families)
- Mr. & Mrs. Darcy series by Carrie Bebris (Jane Austen & Friends) (Historical Mysteries: 19th Century)
- Mr. Darcy's Daughters series by Lisa Aston (Jane Austen & Friends)
- Mr. Ripley series by Patricia Highsmith (Psychological Suspense)
- Mrs. Browne series by Brendan O'Carroll (Euro & Euro-American Insterest: Irish) (Ties That Bind)
- Mrs. Hudson series by Martin Davies (Sherlock Holmes & Friends)
- Mrs. Jeffries series by Emily Brightwell (Historical Mysteries: Victorian)
- Mrs. Malory series by Hazel Holt (Cozy Mysteries)
- Mrs. Mike series by Benedict & Nancy Freedman (Native American Interest) (Non-Christian Inspirational)
- Mrs. Murphy series by Rita Mae Brown (Cat Mysteries)
- Mrs. Pargeter series by Simon Brett (Cozy Mysteries) (Amateur Sleuths: Sweet Old Ladies & Other Seniors)
- Mrs. Pollifax series by Dorothy Gilman (Amateur Sleuths: Sweet Old Ladies & Other Seniors)
- Muffin, Charlie series by Brian Freemantle (Bond. James Bond)
- Mulberry, Georgia series by Tina McElroy Ansa (Southern/Small Town Humor)
- Mulcahaney, Norah series by Lillian O'Donnell (Police Procedureals)
- Mulheisen series by Jon A. Jackson (Espionage)
- Mull, Isle of, series by Jessica Stirling (Historical Romances)
- Mullally, Terry series by William F. Weld (Satire)
- Müller, Jens series by Julian Jay Savarin (Espionage)
- Muller, Kurt series by Thomas Zigali (Police Procedurals)
- Muller, Lexie & McGraw, Hailey series by Kayla Perrin and Brenda Mott (Humorous Mysteries)
- Mullins, Phoebe series by Karen Sturges (Musical Mysteries)
- Munch Mancini series by Barbara Seranella (Hardboiled Detectives) (Spunky Women Sleuths)
- Munro, Dougal & Carter, Jack series by Jack Higgins (Espionage)
- Murder 101 series by Maggie Barbieri (Academic Mysteries)
- Murder by Month series by Jess Lourey (Holiday Mysteries)
- Murder by the Yard series by D.R. Meredith (Books & Publishing Industry Mysteries) (Libraries and Librarians)
- Murder Can... series by Selma Eichler (Culinary Mysteries) (Humorous Mysteries)
- Murder Club, Women's series by James Patterson (Psycho-Killer Thrillers) (Psychological Suspense)
- Murder, Diagnosis series by Lee Goldberg (Cozy Mysteries)
- Murder, Mainely series by Sarah Graves (Regional Mysteries: Maine)
- Murder, Ministry is, series by Emilie Richards (Clerical Mysteries)
- Murder, She Wrote series by Donald Bain (Amateur Sleuths: Seniors)
- Murder-a-Go-Go series by Rosemary Martin (Historical Mysteries: 1960s)
- Murderers, Medieval series by The Medieval Murderers (Historical Mysteries: Middle Ages)
- Murdoch, William series by Maureen Jennings (Historical Mysteries: 19th Century) (Regional Mysteries: Canada)
- Murdock, Page series by Loren D. Estleman (Outlaws & Lawmen)
- Murphy, Molly series by Rhys Bowen (Historical Mysteries: 19th Century) (The Immigrant Experience)
- Murphy, Mrs. series by Rita Mae Brown (Cat Mysteries)
- Murphy, Paris series by Theresa Monsour (Psycho-Killer Thrillers)
- Murphy, Ruby series by Maggie Estep (Horses & Horseracing Mysteries)
- Murray Whelan series by Shane Maloney (Regional Mysteries: Australia)
- Museum of Natural History series by Douglas Preston & Lincoln Childs (Paranormal Thrillers) (Science Thrillers)
- Muses, Nine series by Ellen Pall (Amateur Sleuths)
- Music Lover's Mystery series by Karen Sturges (Musical Mysteries)
- Music of Time, A Dance to the, series by Anthony Powell (British Humor) (Historical Fiction: 20th century) (Odd Families, Quirky Characters)
- Musketeers, Three series by Alexandre Dumas (Historical Fiction: 1800s) (Swashbuckling Adventure)
- Mustang Sally series by Virginia Swift (Humorous Mysteries)
- Mycroft Holmes series by Quinn Fawcett (Sherlock Holmes & Friends)
- Myr, Eiden series by Terry McGarry (Epic Fantasy)
- Myron Bolitar series by Harlan Coben (Sports Mysteries)
- Myrtle Clover series by Elizabeth Spann Craig (Amateur Sleuths: Seniors)
- Mysteries in Time series by Jim Walker (Historical Mysteries: Throughout History)
- Mysterious Play (Fushigi Yugi) series by Yu Watase (Anime/Manga)
- Mystery of Colonial Times series by Stephen Lewis (Historical Mysteries: 17th Century)
- Myth series by Robert Lynn Asprin (Humorous Fantasy)
- Myth, World as, series by Robert A. Heinlein (Parallel Worlds/Other Dimensions)
- Mythos Tales, Best series by Brian Lumley (Cthulhu Mythos)
updated: Wednesday, July 27, 2011
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