The Trials of Apollo #1: The Hidden Oracle (PB)
The Trials of Apollo #2: The Dark Prophecy (PB)
The Trials of Apollo #3: The Burning Maze (PB)
The Trials of Apollo #4: The Tyrant's Tomb (HC)
The Trials of Apollo #4: The Tyrant's Tomb (PB)
The Trials of Apollo #5: The Tower of Nero (HC)
The Trials of Apollo #5: The Tower of Nero (PB)
The Trumpet of the Swan
The Tryout #2: The Squad
The Tryout: A Graphic Novel
The Ultimate Book of Reptiles
The Ultimate Guide to Dogs
The Umbrella House
The Unknown Soldier
The Unlikely Hero: The Story of Wolf 8 (A Young Readers' Edition)
The Unwanteds #1
The Unwanteds #2: Island of Silence
The Unwanteds #4: Island of Legends
The Unwanteds #5: Island of Shipwrecks
The Unwanteds #6: Island of Graves
The Unwanteds #7: Island of Dragons
The Unwanteds Quests #1: Dragon Captives
The Unwanteds Quests #5: Dragon Fire
The Unwanteds Quests #6: Dragon Slayers
The Unwanteds Quests #7: Dragon Fury
The Very Genius Notebooks #1: The Chronicles of Deltovia
The War I Finally Won
The Wild Robot #1
The Wild Robot #2: The Wild Robot Escapes
The Wild Robot #3: the Wild Robot Protects
