• Clifford Color and Activity Book
• Clifford Storybooks
• Clifford the Big Red Dog
• Clifford the Big Red Dog in Spanish
• Clifford's Puppy Days
• Cliffs Notes S.
• Cling & Play
• Clique Series
• Cloak Society
• Clock Book
• Cloth Book
• Cloth Books
• Cloth Skaker Teether
• Clothes and Crafts in History
• Cloud Academy Series
• Cloud Hunters
• Clubhouse
• Clubhouse USA
• Clucky
• Clustering Phenomena in Nuclei
• Cobb, Vicki. Five Senses.
• Cobb, Vicki. Imagine Living Here.
• Cobble Street Cousins
• Cobble Street Cousins (Prebound Unnumbered)
• Cobtown
• Coby Blanchard
• Cocina Para Chicos
• CodeName Kids Next Door
• Codename Conspiracy
• Codename: Kids Next Door
• Cody
• Coin Reveal
• Col Plus SelfInk Roll Stamper
• Col Plus SelfInk Stamper Mark
• Cold Cereal Saga
• Coleccion ""Esa Horrible Historia""/Horrible Histories Series
• Coleccion ""Mundo Maravilloso""/First Discovery Series
• Coleccion "Clasicos En Accion"/Classics in Action Series
• Coleccion "Encuento"/Literary Encounters Series
• Coleccion "Fantasmas De Fear Street", Ghosts of Fear Street Series
• Coleccion "Montana Encantada", Enchanted Mountain Series
• Coleccion Abracadabra
• Coleccion Altea Benjamin
• Coleccion Austral (1987)
• Coleccion Caracol / Shell Collection
• Coleccion Clasica
• Coleccion Clasicos De La Literatura Estadounidense Carrascalejo De La Jara
• Coleccion Clasicos De La Literatura Europea Carrascalejo De La Jara
• Coleccion Clasicos De La Literatura Latinoamericana Carrascalejo De La Jara
• Coleccion Clave De Sol