- Maudit
- Maw of Mirrors
- Max
- Max and the Gatekeeper
- Max and the Midknights
- Max and the Midknights: Battle of the Bodkins
- Max and the Millions
- Max Hamby and the Amethyst Guardian
- Max Hamby and the Blood Diamond
- Max Hamby and the Blue Fire
- Max Hamby and the Emerald Hunt
- Max Hamby and the Faeryn Cross
- Max Hamby and the Onyx Eyes
- Max Hamby Boxed Set 1
- Max Hamby Boxed Set 2
- Max Hamby: Books 1-6
- Max Helsing and the Beast of Bone Creek
- Max Helsing and the Thirteenth Curse
- Max und Moritz - Eine Bubengeschichte in sieben Streichen
- Max: A Watcher Series Mini Novella
- Maxim: A New Type of Human
- Maximillian Fly
- Maximum Experience
- Maximum Magic: Mayhem at the New Museum
- Maximum Magic: The Infatuation Infection
- Maximum Magic: The Save Our School Summer
- Maximum Ride: Saving the World and Other Extreme Sports
- Maximum Ride: School's Out Forever
- Maximum Ride: The Angel Experiment
- MAYA AWAKENS
- Maya's Story
- Maybe a Fox
- Mayhem
- Maze Runner - Udbruddet
- Maze Runner – Il palazzo degli spaccati
- Maze Running and other Magical Missions
- Maëlstria - Lumeyra
- Maître Kram
- Me llamo Río
- Meadowsweet
- Meanwhile, In Italy
- Measure of Days
- Mecha Mayhem
- Medallion of Protection
- Media guerra (El mar Quebrado 3)
- Los Gatos Guerreros La Nueva Profecía 1 - Medianoche
- Medianoche (Medianoche 1)
- Medianoche absoluta
- Medio mundo (El mar Quebrado 2)
- Medio rey (El mar Quebrado 1)
- Medusa
- Meepcha and the Lost 100
- Meer der Schilde (Band #10 im Ring der Zauberei)
- Meeresglühen (Bd. 1)
- Meeresglühen (Bd. 2)
- MeeresWeltenSaga 1: Unter dem ewigen Eis der Arktis
- MeeresWeltenSaga 3: In den endlosen Tiefen des Atlantiks
- MeeresWeltenSaga 4: Zwischen den Wellen des Indischen Ozeans
- MeeresWeltenSaga 5: Mit der reißenden Strömung der Antarktis
- Meerjungkind
- Meester Legende
- Meia-noite na Lua
- Melissa and Kasho
- Mellom speilene
- Mellya et les dragons d’Azraqa
- Melody's Unicorn
- Melowy 10. La ricetta della primavera
- Melowy 11. La magia di Destiny
- Melowy 4. L'incanto del ghiaccio
- Memento
- Memoria (Multiverso 2)
- Memorias de Idhún. La Resistencia. Libro I: Búsqueda
- Memorias de Idhún. La resistencia. Libro II: Revelación
- Memorias de Idhún. Panteón. Libro V: Convulsión
- Memorias de Idhún. Tríada. Libro III: Despertar
- Memorias de Idhún. Tríada. Libro IV: Predestinación
- Memorias del corazón (Secretos del alma 3)
- Memorias del más allá para vivir en el más acá
- Memorie di Talarana - Il Corno dell'Apocalisse
- Memorie di Talarana - La sinfonia del rinnegato
- Memorie di Talarana - Il Corno dell'Apocalisse
- Memorie di Talarana - La sinfonia del rinnegato
- Memories of Ash
- Memory Boy
- Memory Thief Educator's Guide
- Memory's Wake
- Memory's Wake Omnibus: The Complete Illustrated YA Fantasy Series
- Memòries d'Idhun I. La Resistència
- Memòries d'Idhun II. Tríada
- Memòries d'Idhun III. Panteó
- Men of Iron
- Menedék
- Mentira 1: Stadt der Lügen
- Mercadia Stalling
- Mercenary (Little Death Bringer, Book One)
- Merciful Crows - tome 01 : La voleuse d'os
- Merciful Crows - Tome 02 : L'aigle impitoyable
- Merciless Reason
- Mercuriel: Aubrey Rising Book 3
- Mercy, Me
- Meredith and the Magic Library
- Meren alku
- Merger
- Mericolt's Secret
- Meridian - Flüsternde Seelen
- Merlin - La flemme éternelle - Tome 3 - Dès 10 ans
- Merlin - Le guide des quatre mondes - Dès 10 ans
- Merlin 1, De tapte årene
- Merlin bok 2, De syv sangene
- Merlin bok 3, Ild og flammer
- Merlin Bones and the Cursed Station
- Merlin Bones and the Entity Sword
- Merlin Bones and the Prisoner of Midnight
- Merlin Ragnarr
- Merlin's Blade
- Merlin's Moon
- Merlin's Nightmare
- Merlin's Shadow
- Merlin's Shakespeare