- O Abeto
- O carnaval dos bichos aloprados
- O casamento da Macaca
- O irmão do Papai Noel
- O que eu quero de presente?
- O que significa a Páscoa
- O que é amor? - What Does Love Mean?
- O que é o amor? - What is Love?
- Oeuf & Jambon: Gros câlins pour la St-Valentin
- Oeuf & Jambon: La citrouille qui chatouille
- Oeuf et Jambon: C'est Pâques, mon coco!
- Off to Plymouth Rock
- Off to the Fair with Billy and Ben
- Oh Christmas Tree Chris Cross
- Oh no, Papa Noel esta enfermo
- Oh no, Papa Noel esta enfermo
- Oh, The Places You’ll Go!
- Old Christmas
- OLD CHRISTMAS (Illustrated)
- Old Dingledorf Square and Other Christmas Tales
- Ollie's Holiday Havoc
- Oma und ich und die Weihnachtszeit
- Once Around the Sun
- Once Upon a Bedtime
- Once Upon A Catmas Eve
- Once Upon a Sesame Street Christmas (Sesame Street)
- Once Upon a Snowstorm
- One Christmas Story
- One Potato, Two Potato
- One Starry Night
- Opal Lee and What It Means to Be Free
- Opas Adventskalender - 31 Adventskalendergeschichten
- Opowiesc wigilijna wydanie ilustrowane
- Opposites For Kids
- Origami For Christmas: Books For Kids
- Ornaments: The Klumps
- Ornaments: The New Tree
- Ornaments: The Secret of the Tree
- Oscar the Hungry Unicorn Eats Christmas
- Oskar and the Eight Blessings
- Osprey Island
- Otis Gives Thanks
- Over the River