Uncle John's Unsinkable Bathroom Reader is jam-packed with over 500 pages of humor, history, science, pop culture, and more. This all-new 21st edition in this popular series is divided into short, medium, and long sections that explore topics including: Breaking the Mayan Code, Cycads: The Most Ancient Plants on Earth, The History of the Library of Congress, Return to Chernobyl, An Untold Story of WWII: The Fighting 442, The Origin of Lasers, Japanese Scholar Rocks, The Heart of the Andes, The Luniverse, and The Truth About Jumping Beans. With Uncle John’s trademark trivia, obscure facts and figures, forgotten histories, and unknown origins, this book provides readers with hours of fun.