- OTHER WORLDS 2: Beast World
- OTHER WORLDS 3: Game World
- OTHER WORLDS 4: Dark World
- Others, Just Like Me
- Otherwise Known as Sheila the Great
- Otherworld Chronicles #2: The Seven Swords
- Otherworld Chronicles #3: The Dragon King
- Otherworld Chronicles: The Invisible Tower
- Otherworlds - Tome 1
- Otis and The Kittens
- Otis and the Scarecrow
- Otis and the Tornado
- Otis bråkar
- Otis Dooda
- Otis Dooda: Downright Dangerous
- Otis Gives Thanks
- Otis Grows
- Otis Spofford
- Otis the Owl
- Otis's Busy Day
- Otis, el búho
- Oto jest Kasia
- Otromundo
- Otrávená
- Otte prinsesser og et magisk spejl
- Otte tusser og en kat
- Otter and Owl and the Big Ah-choo!
- Otter and Owl Say I'm Sorry
- Otter and Owl Set Sail
- Otter and Owl's Helpful Hike
- Otter Chaos - The Dam Busters
- Otter Chaos!
- Otter Goes to School
- Otter Out of Water
- Otter Pups
- Otter Tales
- Otter Tales Volume II
- Otter This World
- Otter This World Read-Along
- Otter: Best Cake Ever
- Otter: Hello, Sea Friends!
- Otter: I Love Books!
- Otter: Let's Go Swimming!
- Otter: Oh No, Bath Time!
- Otter: The Best Job Ever!
- Otter: What Pet Is Best?
- Otterman Island - Buried Treasure
- Otters
- Otters For Kids
- Otters' Moon
- Otterwill Book 3: Tales of Tossledowns
- Otto
- Otto and the New Girl
- Otto er et næsehorn
- Otto findet einen neuen Freund
- Otto ja Dracon siepparit
- Otto ja Hydran surfaajat
- Otto ja Plejadien lähettiläs
- Otto of the Silver Hand
- Otto P. Nudd
- Otto Panini
- Otto si'r risotto
- Otto the Book Bear
- Otto the Owl Who Loved Poetry
- Otto und der kleine Herr Knorff
- Otto und der kleine Herr Knorff - Auf Monsterjagd
- Otto und der kleine Herr Knorff - Donner, Blitz, Knobelius
- Otto är en noshörning
- Otto's Backwards Day
- Otto's Orange Day
- Otto: A Palindrama
- Ottokar das Zauberpferd
- Ottokar mischt wieder mit
- Ottoline and the Purple Fox
- Ottoline and the Yellow Cat
- Ottoline at Sea
- Ottoline Goes to School
- Otur i borgen
- Ou est passé le doudou de Clovis
- Ou isto ou aquilo
- Ouaf? Ouaf? Cot! Cot!
- Ouch in the Pouch
- Ouch Mean Stops
- Ouch! "Jack and Jill"
- Ouch! Stitches
- Ouch: Tales of Gravity
- Ouchiwahwah!
- Ouders zijn gek!
- Oudste
- Oui Love Animals
- Oui Love Colors
- Oui Love Cuisine
- Ouille! Ça fait mal
- Ouille, ouille, ouille... quelle trouille !
- Ouistiti a disparu !
- Ouoro le chimpanzé
- Oupa is hemel toe
- Oups ! J'ai effacé la prof
- Oups!
- Oups, Pierre change de métier !
- Our Amazing Sun
- Our Animal Neighbors
- Our Auntie (“Tee-Tee”) Uses a Chair with Wheels
- Our Australian Girl: A Friend for Grace (Book 2)
- Our Australian Girl: A Home for Grace (Book 4)
- Our Australian Girl: A Lesson for Lina (Book 4)
- Our Australian Girl: Alice and the Apple Blossom Fair (Book 2)
- Our Australian Girl: Daisy All Alone (Book 2)
- Our Australian Girl: Daisy in the Mansion (Book 3)
- Our Australian Girl: Daisy on the Road (Book 4)
- Our Australian Girl: Grace and Glory (Book 3)
- Our Australian Girl: Letty and the Stranger's Lace (Book 2)
- Our Australian Girl: Letty on the Land (Book 3)
- Our Australian Girl: Letty's Christmas (Book 4)
- Our Australian Girl: Lina at the Games (Book 3)
- Our Australian Girl: Lina's Many Lives (Book 2)
- Our Australian Girl: Marly walks on the Moon (Book 4)
- Our Australian Girl: Marly's Business (Book 2)
- Our Australian Girl: Meet Alice (Book 1)
- Our Australian Girl: Meet Daisy (Book 1)
- Our Australian Girl: Meet Grace (Book 1)
- Our Australian Girl: Meet Letty (Book 1)
- Our Australian Girl: Meet Marly (Book 1)
- Our Australian Girl: Meet Nellie (Book 1)
- Our Australian Girl: Meet Pearlie (Book 1)
- Our Australian Girl: Meet Poppy (Book 1)
- Our Australian Girl: Meet Rose (Book 1)
- Our Australian Girl: Nellie and Secret the Letter (Book 2)
- Our Australian Girl: Nellie's Greatest Wish (Book 4)
- Our Australian Girl: Peacetime for Alice (Book 4)
- Our Australian Girl: Pearlie the Spy (Book 3)
- Our Australian Girl: Pearlie's Ghost (Book 4)
- Our Australian Girl: Pearlie's Pet Rescue (Book 2)
- Our Australian Girl: Poppy and the Thief (Book 3)
- Our Australian Girl: Poppy at Summerhill (Book 2)