- Monstros Gigantes - Kaiju - Rotina
- Monstros Gigantes - Kaiju - Sob o Etna
- Monstros Gigantes - Kaiju - Spaycy
- Monstrous Beauty
- Monstrous Heart
- Monstrous Ink
- Monstrous Little Voices
- Monstrous Love
- Monstruario
- Monstrum
- Montalbanos allererster Fall
- Montaña de lobo
- Monte-Cristo's Daughter
- Montenegro Book Three: Illusion Within An Illusion
- Montezuma's Caste and Other Weird Tales
- Montezuma's Castle and Other Weird Tales
- Montezuma's Gold
- Montpellier
- Montréel
- Monty The Magnificat
- Montès
- Monumental
- Monuments
- Monólogos Engraçados
- Moo and the Dragons in the Closet
- Moon
- Moon & Earth
- Moon & Ishan - Ritorno ad Arual
- Moon - La notte eterna
- Moon Awakening
- Moon Bitten
- Moon Blind Duology
- Moon Blood
- Moon Breaker
- Moon Bride
- Moon Brothers
- Moon Called
- Moon Cave
- Moon Craving
- Moon Crossed
- Moon Cursed
- Moon Dancer
- Moon Daughter
- Moon Daughter's Reveries...The Apocalypse
- Moon Deeds: Star Children Saga
- Moon Dog Magic
- Moon Dogs
- Moon Dust
- Moon Dynasty
- Moon Everlasting
- Moon Feast
- Moon Girl 1: Moon Rise
- Moon Girl 2: Bell Toll
- Moon Girl 3: Guillotine
- Moon Girl 4: Rift
- Moon Glamour
- Moon Kissed
- Moon Kissed: The Wardens of Terra
- Moon Love
- Moon Madness
- Moon Magic
- Moon Marked Trilogy
- Moon Mated
- Moon Mirror
- Moon of Odysseus
- Moon of Skulls
- Moon of the Goddess
- Moon of the Sea
- Moon of Zambebwei
- Moon Over Donamorgh
- Moon Promise
- Moon Queen
- Moon Rapture
- Moon Rapture Book 7
- Moon Rebels
- Moon Series Megabook
- Moon Shadow
- Moon Shadows Series 1-3 [Moonlight Captivation, Sin's City, and Falling Dragons]
- Moon Shimmers
- Moon Stalked
- Moon Struck: When Were & Howl Book 1 & Elemental Rage Book 1
- Moon Sworn
- Moon Tide
- Moon Trek: The Misadventures of Alexis Calderon-Bigglesworth III
- Moon Walker
- Moon's Fury
- Moon's Knight
- Moon's Prodigy
- Moon's Web
- Moon-Call (Lone March #7)
- Moon-Crossed Wolves Trilogy
- Moon-Face
- Moon-Flash
- Moon-Kissed
- Moonbaby
- Moonbeam
- Moonbeams (Beams & Light #1)
- Moonbeams from the Larger Lunacy
- Moonboots Are for Lovers
- Moonbreaker
- Moonbreeze
- Mooncat: Ominous Dreams
- Mooncat: Signals from the Moon
- Moonchild
- Moondance
- Moondancers
- Moonfall
- MoonFall
- Moonfire
- Moonfur And Other Tales
- Moongather
- Moonheart
- Moonless Night Special Edition
- Moonlight & Mechanicals