- Uncle Wiggily Goes Swimming: How the Frog Boys Surprised the Fox
- Uncle Wiggily's Adventures
- Uncle Wiggily's Story Book
- Uncle Wiggily’s Adventures
- Uncle Wrigley Visits the Easter Bunny
- Uncles and Antlers
- Uncommon Champions
- Unconditional Love
- Und das nehme ich auch!
- Und schon wieder ein Pony
- Und tschüss!
- Und was ich dir noch sagen wollte ...
- Und was kann ich?
- Und wenn schon!
- Und wer nur Gott zum Freunde hat, dem hilft er immer wieder
- Und wieder Frischi Frischling
- Und wieder Winter
- Und wo ist der Himmel?
- Und zwischen uns eine Mauer
- Undead Ed
- Undead Ed and the Demon Freakshow
- Undead Ed and the Fingers of Doom
- Under a Living Sky
- Under a Pig Tree
- Under Control
- Under Copp's Hill
- Under Drake’s Flag
- Under Emily's Sky
- Under kejsarens ok
- Under My Bed
- Under My Bed: At Sea
- Under Our Clothes
- Under Our Clothes Read-Along (Enhanced Edition)
- Under Pressure
- Under Pressure With a Squash
- Under Sapphire Skies
- Under Suspicion: A Friday Barnes Mystery
- Under the Alien Ice
- Under the Apple Tree
- Under the Ashes
- Under the Banyan Tree
- Under the Baobab Tree
- Under the Big Top
- Under the Bottle Bridge
- Under the Chinaberry Tree
- Under the Egg
- Under the Lilacs
- Under the Magician's Spell (Give Yourself Goosebumps)
- Under the Mango Tree
- Under the Mountain
- Under the Night Sky
- Under the Oaken Bough
- Under The Ocean
- Under the Onion Dome
- Under the Quilt of Night
- Under the Radar
- Under the Sea Read-Along
- Under the Sea with Googol and Googolplex
- Under the Serpent Sea (The Secrets of Droon #12)
- Under the Sun, Moon, and Stars
- Under the Tree
- Under the Watsons' Porch
- Under The Woodlands
- Under Their Skin
- Under Thors værge og andre fortællinger
- Under Wildwood
- Under-the-Bed Fred
- Undercover Carly
- Undercover Doxies
- Undercover Explorer
- Undercover in the Bow-Wow Club
- Undercover Parent
- Undercover! (Emma Is On the Air #4)
- Underground To Canada
- Underground to Canada (Barbara Smucker)
- Underjordingen
- Underneath the Lily Pad
- Underpants Dance
- Underneath the Lily Pad
- Underpants Dance
- Understanding Me
- Understanding Oscar
- Understanding Samantha
- Understood Betsy
- Underwater Animals
- Underwater Dogs: Kids Edition
- Underwater War: Battle Boy 15
- Underwater Wedding
- Underwater World
- Underwear Boy vs The No-Name Monster (Warparty #3)
- Underwear Boy vs The Vampire (Warparty #2)
- The Battle Begins (Underworlds #1)
- When Monsters Escape (Underworlds #2)
- Underworlds #3: Revenge of the Scorpion King
- The Ice Dragon (Underworlds #4)
- Undine, in English translation, retold for children
- Undo Por el Mundo
- Une addition, des complications
- Une affaire atomique
- Une affaire d'adultes
- Une amie géniale
- Une amitié explosive
- Une année avec Martine
- Une année tourbillon
- Une autre curieuse histoire d'un chat moribond
- Une autre vie
- Une balançoire pour deux
- Une bataille pas comme les autres
- Une bible - l'Ancien Testament
- Une bible - un nouveau testament
- Une bonne action
- Une bouteille à la mer
- Une brique sur la tête de Suzanne
- Une bévue de Zarah-Violette
- Une cabane dans les bois
- Une carte vers le monde (A Map into the World)