• The Cloud Hunters
• The Clouded World
• The Clovis Crawfish Series
• The Codebearers
• The Cold War
• The Collected John Carter of Mars
• The Colorado Experience
• The Coloring Studio
• The Companion to Rebel Angels
• The Complete Book
• The Complete Book Series
• The Complete Idiot's Guide
• The Cooper Kids Adventure Series
• The Craft Series
• The Crafty Kids Series
• The Cronus Chronicles
• The Crossing
• The Crow Chronicles
• The Crusades
• The Curse of the Jolly Stone Trilogy
• The Cutting Edge
• The Daddy Series
• The Danger
• The Daring Do Adventure Collection
• The Dark Is Rising Sequence
• The Dark Reflections Trilogy
• The Darkangel Trilogy
• The Darkening Path
• The Darlings
• The Daughters
• The De Granville Trilogy
• The Dead Kid Detective Agency
• The Deal With It Series
• The Dear America Collection
• The Demonata
• The Deptford Mice Trilogy
• The Descendants
• The Developments Series
• The Devils Dances Trilogy
• The Devouring
• The Devouring: Book 2
• The Diary of Dennis the Menace
• The Dinosaur Library
• The Discovery Series
• The Dissenters Series
• The Diviners
• The Doctor Who Files
• The Doll People
• The Door Within
• The Door Within Trilogy