The Ultimate Book of Reptiles
The Ultimate Book of Silly Jokes for Kids
The Ultimate Book of Whales: Up-Close Encounters With Earth's Mightiest Mammals
The Ultimate Guide to Dogs (book spine damage noted)
The Ultimate Student Cookbook
The Umbrella House
The Underdogs #1: Catch a Cat Burglar
The Underdogs #2: Fake It Till They Make It
The Underland Chronicles #1: Gregor the Overlander (2025 Edition)
The Underwild #1 - River of Spirits
The Underwild #2: Relic of Thieves
The Unicorn Rescue Society # 3: Sasquatch and the Muckleshoot
The Unicorn Rescue Society # 4 : The Chupacabras of the Rio Grande
The Unicorn Rescue Society # 5: The Madre de Aguas of Cuba
The Unicorn Rescue Society # 6: The Secret of the Himalayas
The Unicorn Rescue Society #1: The Creature of the Pines
The Unicorn Rescue Society #2: The Basque Dragon
The Universe: Discover What Lies Beyond Our Skies
The Unlikely Hero: The Story of Wolf 8 (A Young Readers' Edition)
The Unofficial Harry Potter Joke Book: Howling Hilarity for Hufflepuff
The Unofficial Ultimate Harry Potter Spellbook
The Unwanteds #5: Island of Shipwrecks
The Unwanteds #6: Island of Graves
The Unwanteds Quests #1: Dragon Captives
The Unwanteds Quests #2: Dragon Bones
The Unwanteds Quests #3: Dragon Ghosts
The Unwanteds Quests #4: Dragon Curse
The Unwanteds Quests #5: Dragon Fire
The Unwanteds Quests #6: Dragon Slayers
The Unwanteds Quests #7: Dragon Fury
