- I Am Never Alone
- I Am Not Esther
- I am Winter
- I Can Be Your Friend
- I Can't Go Home Because of the Ghosts: Mom and Dad Said So A Children's Ghost Story
- I Dare You
- I Dare You to Break Curfew
- I Date Dead People
- I Date Dead People (Enhanced Edition)
- I fell in love with Cupid
- I Heart Vampires: Birth (A Confessions of a High School Vampire Novel)
- I Heart You, You Haunt Me
- I hunt killers
- I Hunt Killers
- I Know What You Did Last Summer
- I Know When You're Going To Die
- I Live In Your Basement (Goosebumps #61)
- I Livellatori
- I Love Him to Pieces
- I Love Him to Pieces (Enhanced Edition)
- I Saw Mommy Biting Santa Claus
- I So Don't Do Mysteries
- I So Don't Do Spooky
- I Spy With My Little Eye...
- I Text Dead People
- I Vivi, i Morti e gli Altri
- I Want My Apple Juice
- I Was A Teenage Necromancer
- I was a Teenage Vegetarian Zombie Detective
- I Woke Up Dead at the Mall
- I'm Not Who You Think I Am
- I'm with the Banned
- Icari
- Iceas' Victory
- Ich bin Nummer Vier
- If I Should Die
- If It Haint Broke
- Ignite
- Ignite
- Ignite (Midnight Fire Series Book One)
- Ignite: Book II of the Hollowstone Chronicles
- Ignition
- Ikot (Unang libro sa Talaarawan ng Bampira)
- Illuminate
- Illuminatus (The Girl in the Leather Jacket, #2)
- Illusion
- Im Herzen der Zorn
- Im Herzen die Gier (Furien-Trilogie Band 3)
- Im Herzen die Rache (Furien-Trilogie Band 1)
- Imaginary Girls
- Imagine Jade Gone
- Imm Tricks (The Presenting Saga Book 2)
- Imminence
- Immortal Beloved
- Immortal Beloved (Book 2 of The Knight Trilogy)
- Immortal Calling
- Immortal Darkness
- Immortal: The Chosen
- IMPERFECT ORB
- Imperfectos
- Imperi de llops
- Impossible Things
- Impyrium, Livre I
- In den Fängen des Seemonsters
- In Dreams
- In fuga
- In My Mind's 'I'
- In Real Life
- In the after
- In the Arms of Stone Angels
- In The Between
- In the Blood (Book #2 in the Vampire's Witch Saga)
- In the Dark of Light
- In the end
- In The End: The complete series
- In the Garden of Memories
- In the Land of the Lawn Weenies
- In the Middle of the Night
- In the Service of Samurai
- In the Shadow of Blackbirds
- In The Shadows
- In The Time of the Wolves
- In the Woods
- In The Woods + Bonus Prequel 2nd Edition
- In Too Deep
- Incite
- Incontri ravvicinati del terzo topo
- Indestructible
- Indian Ghost Stories
- Indigo Awakening
- Infection
- Infectés - Tome 1
- Infectés - Tome 2
- Inferno
- Infestation
- Infinite
- Infinite Risk
- Infinitely Intertwined
- Inframundo
- Infusion
- Inheritance
- Iniciación: Academia Bonfire 1
- Inimical
- INITIATION
- Inizio di una Nuova Vita (Libro #1 di Le Leggende del Vampiro)
- Ink Exchange
- Innan helgen är över
- Inner Demons
- Innocenti Spiriti
- Insaisissable Saison 2 - tome 1 Crois en moi
- Insaisissable Saison 2 - tome 2 Provoque-moi
- Insaisissable Saison 2 - tome 3 Imagine-moi