- Maug- A Dane Maddock Adventure
- Mauprat
- Maurice Tiernay, Soldier of Fortune
- Maurin des Maures
- Mauser C96
- Mausoleum 2069
- Mauvais climat
- Mauvais garçons
- Mauvaise limonade
- Maux d’Amour
- Maverick Jack: An Out of Time Novel
- Maverick Marshall
- Maverick Showdown
- Maveth
- Mavis and 289
- Maw's Vacation: The Story of a Human Being in the Yellowstone
- MAX BRAND Premium Collection
- MAX BRAND Ultimate Collection: 90+ Novels & Short Stories
- Max Brand Western Super Pack
- Max Danger
- Max Einstein
- Max Nebulous
- Max P.I.
- MAX PAYNE
- Max Pemberton Ultimate Collection: 50+ Adventure Tales & Detective Mysteries
- Max Ventura
- Max: A Maximum Ride Novel
- Maxim Gunn and Sheba's Necklace
- Maxim Gunn and the Chaos Project
- Maxim Gunn and the Demon Plan
- Maxim Gunn and the Leopard Legion
- Maxim Gunn and the Serpent Force
- Maxim Gunn and the Stolen Waters
- Maxim Gunn and the Sun Fortress
- Maxim Gunn Downunder
- Maximum Insanity
- Maximum Risk
- Maximus Jungle Warrior
- Maxine's Backyard Wonders
- May There Be a Road
- Maya
- Maya's Aura: The Ashram
- Mayan Gold
- Mayan Intrigue: The Adventures of John and Julia
- Mayan Storm
- Maybe
- Maybe Alone
- Maybe Forgotten
- Mayberry R.F.D., the Place I Want to Be
- Mayday - Mayday - Mayday
- Mayhem at the Hampton Classic
- Mayhem at the Mission
- Mayhem in Mazatlan
- Mayhem in South China Sea
- Maze Keepers
- Maze of the Devil
- Maëlenn et la prophétie de la fée Morgane
- Maître du monde – suivi d'annexes
- Maître Rossignol le libre penseur
- Maître Zacharius ou l’Horloger qui avait perdu son âme
- Maître Zacharius – suivi d'annexes
- Mañana
- MC 52
- McAlister's Way
- McCracken's Land
- McGarvey
- McKay's Loup-Garou Love (Gay Werewolf Romance)
- McKay's Promise
- McKay's Serial Killer Shifter
- McKay's Werewolf Ways
- McKinney Sweetlock and The Revolt Against the New World Soldier
- McMillan File
- McSweeney's Mammoth Treasury of Thrilling Tales
- Me & Madison And The Button Hunt
- Me & My Granddad: American Warriors
- Me and Bobby McGee
- Me and Mo
- Me and the Foreign Girl
- Me Bandy, You Cissie
- Me llevo la canción
- Me Revoilà !
- Me So Far
- Me Too
- Meadowbrook Under Thunder and Wind (Revised)
- Mean Streets and Dead Alleys
- Meandering Malice
- Measuring the World
- Measuring Up
- Meat for the Lion
- Meca: A Life Within
- Mechanical Dragons Box Set
- Air
- Earth
- Fire & Water
- Reunion
- Spirit
- Mechanical Man
- Medellin Acapulco Cold
- Media guerra (El mar Quebrado 3)
- Medicine Creek
- Medieval America
- Medio mundo (El mar Quebrado 2)
- Medio rey (El mar Quebrado 1)
- Meditations: The Musings of Joe
- Medo Do Fogo