- I Adopted a Villainous Dad Vol. 1 (novel)
- I Am Chris
- I Am Not a Number
- I Am Number Four
- I Am Number Four Collection: Books 1-6
- I Am Number Four: The Beginning: Books 1-3 Collection
- I Am Number Four: The Lost Files: Five's Betrayal
- I Am Number Four: The Lost Files: Five's Legacy
- I Am Number Four: The Lost Files: Hunt for the Garde
- I Am Number Four: The Lost Files: Last Defense
- I Am Number Four: The Lost Files: Legacies Reborn
- I Am Number Four: The Lost Files: Nine's Legacy
- I Am Number Four: The Lost Files: Return to Paradise
- I Am Number Four: The Lost Files: Six's Legacy
- I Am Number Four: The Lost Files: The Fallen Legacies
- I Am Number Four: The Lost Files: The Forgotten Ones
- I Am Number Four: The Lost Files: The Fugitive
- I Am Number Four: The Lost Files: The Guard
- I Am Number Four: The Lost Files: The Last Days of Lorien
- I Am Number Four: The Lost Files: The Navigator
- I Am Number Four: The Lost Files: The Search for Sam
- I Am the Messenger
- I Am Traitor
- I Became the Secretary of a Hero! Volume 2
- I can see U
- I choose us - Tome 1
- I Dare You to Break Curfew
- I Did It for the Lulz
- I et andet liv
- I fell in love with Cupid
- I fjederhammen
- I Guardiani di Nettuno, L'Ardore
- I Hate Love: A Lesbian Romance for Teens
- I Hate You, Fuller James
- I Have a Little Seedling
- I Have Lost My Way
- I Heart Robot
- I Heart You, You Haunt Me
- I Kissed a Zombie, and I Liked It
- I Kissed Alice
- I Kissed Shara Wheeler
- I Kissed the Boy Next Door
- I Knew You Were Trouble
- I Know Lucy (The Fugitive Series #1)
- I Know What Gay Is: Short Fiction for Teens
- I Know You Remember
- I Love Dad with The Very Hungry Caterpillar
- I love Louise
- I Love Mom with The Very Hungry Caterpillar
- I Love My Baby Because…
- I Love Who I Am: Self-Love For Kids.
- I Love You Already!
- I Love You for Miles and Miles
- I Love You Night and Day
- I Love You To My Heart
- I Love You, Stick Insect
- I Love You, Stupid!
- I Met My Love in Paris @ 26
- I Never Wanted To Be Psychic
- I Racconti Delle Stelle
- I ragazzi di Egham 78' crescono : l'avventura di Dundee
- I Ragazzi di Egham'78
- I Reincarnated As Evil Alice, So the Only Thing I’m Courting Is Death!
- I Remember You
- I Saw Daddy Kissing Santa Claus
- I skalet av en pojke
- I Think I Love You
- I violini del cosmo
- I Want You Back
- I Was Born for This
- I Wasn't Supposed To Fall For You
- I Will Always Be Your Bunny
- I Wasn't Supposed To Fall For You
- I Will Always Be Your Bunny
- I Will Always Love Her
- I Woke Up Dead at the Mall
- I'd Tell You I Love You, But Then I'd Have To Kill You
- I'll Be Seeing You
- I'll Give You the Sun
- I'll Never Forget
- I'm Glad I Did
- I'm Mortuary Girl
- I'm Not in the Band
- I'm Not Your Manic Pixie Dream Girl
- I'm Not Your Other Half
- I'm with the Banned
- I've Been Looking for You
- Iaiá Garcia
- Icari
- Ice Like Fire
- Iceas' Victory
- Icebreaker
- Ich - Ein Wahnsinnsjahr
- Ich bin Nummer Vier
- Ich, die Jungs und die Sache mit dem Coolsein
- Ichabod & Penelope
- IDENTICAMENTE OPOSTOS
- Idolernes by
- If Animals Said I Love You
- If I Die Before I Wake
- If I Lie
- If I Should Die
- If I Speak True
- If I Stay
- If I Stay 1 - Hvis jeg bliver
- If I Was Your Girl
- If I'm Being Honest