What You Don't Know is packed with stories that are weird, unexpected, and just plain bizarre. Learn about strange scientific facts , discover the truths behind historical figures , debunk popular urban legends , and thrill yourself with stories of the supernatural . This collection of 156 entries will expand your knowledge on a broad range of topics, including: history, the human body, animals, culture, people, sports, crime, places around the world, and much more. With a vast array of articles, stories, lists, questions and answers, What You Don't Know will provide hours of fascinating reading! Book is lightweight and portable, great for travel! 272 pages