- I Saved Too Many Girls and Caused the Apocalypse Volume 5
- I Saved Too Many Girls and Caused the Apocalypse Volume 6
- I Saved Too Many Girls and Caused the Apocalypse Volume 7
- I Saved Too Many Girls and Caused the Apocalypse Volume 8
- I Saved Too Many Girls and Caused the Apocalypse Volume 9
- I Saved Too Many Girls and Caused the Apocalypse: Volume 15
- I Saved Too Many Girls and Caused the Apocalypse: Volume 16
- I Say Goodbye
- I See Me
- I See Monsters
- I See Us
- I See You
- I segreti dei Sangue Blu
- I segreti di Kane Town
- I segreti di Mydeklaine
- I Segugi dell'Ombra
- I Sentence You to Hell
- I Servi di Ir - La Caduta
- I Shall Not Emerge In A Land Where Injustice Prevails: A Mystic Power In A Lamp
- I Shall Slay the Dragon!
- I Shall Survive Using Potions! Volume 1
- I Shall Survive Using Potions! Volume 2
- I Shall Survive Using Potions! Volume 3
- I Shall Survive Using Potions! Volume 4
- I Shall Survive Using Potions! Volume 5
- I Shall Survive Using Potions! Volume 6
- I Shall Survive Using Potions! Volume 7
- I Should Have Been a Barbarian
- I sicari di Trastevere
- I sigilli del potere
- I Sigilli dell'Altior 3
- I Signori degli Elementi
- I signori del Malsem
- I Sing a Song of Mourning
- I Sing the Body Electric
- I sogni dell'universo (Parte Prima)
- I sogni di Tyra
- I Spy a Demon
- I Spy a Wedding Dress Mess
- I Stole You: Stories From the Fae
- I stworzył Bóg człowieka...
- I Swear I Won't Bother You Again! (Light Novel) Vol. 1
- I talismani dei draghi
- I Terramaghi e la cintura di fuoco
- I tesori dell'angelo perduto
- I tre cunicoli
- I tre frutti magici
- I tre moschettieri (Complete)
- I tre Re
- I tre volti dell'umanità - La danza del tempo
- I tuoi peccati ti troveranno
- I vampiri di San Pietroburgo
- I vampiri di Versailles
- I Vampiri e i Lupi (I Lupi del Re Vol. 3)
- I vermi della sabbia di Dune
- I viaggi di Sindbad
- I Vivi, i Morti e gli Altri
- I Walk in the Shadow
- I Wander Away
- I Wanna Be A Rockette
- I Want Something ...
- I Want to be A Regent Queen
- I Want To Be Alone
- I Want to Be an Exclusive King
- I Want to Know What Love Is...
- I Want Vengeance: Vampire Formula Series Book 0
- I Want Your Hex: Magic and Mayhem Universe
- I Was a Bottom-Tier Bureaucrat for 1,500 Years, and the Demon King Made Me a Minister (light novel)
- I Was a Teenage Ghost Hunter
- I Was a Teenage Weredeer
- I Was Born A Clone!
- I Was Never Afraid
- I Was Our Gypsy Monarch 1
- I was our Gypsy Monarch 2: Adopting my former son
- I Watch My Dreams
- I Will Breathe
- I Will Fight Against Alcohol Abuse
- I Will Find You
- I Will Love You in all Ages
- I WILL NEVER FORGET YOU
- I Will...So...I Can
- I Wish I Was a Cowboy
- I Would Die For You
- I Would Sing (Short Story)
- I Wouldn't Be Surprised: A Short Story
- I Write Scripts For God
- I'll Be Back
- I'll Be Damned, Book #1 in the Anna Wolfe Series
- I'll Be There For The Replay
- I'll Be There For You
- I'll Love You Forever: Weird Love Tales
- I'll Move So Fast
- I'm A Bitchy Supporting Actress
- I'm a Prodigy
- I'm Coming
- I'm Dreaming of an Undead Christmas
- I'm Entangled with Devil Husband
- I'm in Love with the Villainess (Light Novel) Vol. 1
- I'm in Love with the Villainess (Light Novel) Vol. 3
- I'm Losing My Head!
- I'm Not Ehrynn Rose
- I'm Not Infected
- I'm Not Scared
- I'm Not the Man I Thought I Was
- I'm Not Your Empress
- I'm the Vampire, That's Why
- I'm the Villainess, So I'm Taming the Final Boss, Vol. 1 (light novel)
- I'm the Villainess, So I'm Taming the Final Boss, Vol. 2 (light novel)
- I'M. Infinita come lo spazio
- I've Been a Gipsying
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 1
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 10
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 11
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 2
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 3
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 4
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 5
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 6
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 7
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 8
- I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 9
- I've Been Thinking; Or, the Secret of Success
- I, Dracula
- I, Dragon
- I, Fembot
- I, Human Part Nine: Do You Take This Android To Be Your Companion?
- I, Human Part One: The New Renaissance
- I, Human Part Three: The Orbs of Sapentia
- I, Human Part Two: An Android's Soul
- I, Immortal
- I, Immortal the Series, Book 2, World In Flames
- I, Immortal the Series, Book 3, Fire and Ice
- I, Mason of Terrania
- I, Minion (The Minion Chronicles, #1)
- I, Soddit
- I, Strahd: Memoirs of a Vampire
- I, Target (Part 1)
- I, Target (Part 2)
- I, Target (Part 3)
- I, Target (Part 4)
- I, Target (Part 5)
- I, Target (The Complete Series)
- I, the Storm
- I, Vampire
- I, Werewolf
- I, Zillionaire
- I.G. Intelligence Génétique