At last, all those weird but true facts that kids love so much are collected in this fun-tastic set of compact, easy to handle and fun to browse books. Wacky facts, fascinating information, and lively art combine to make these books irresistible brain candy for young readers. Kids will have so much fun that they won't even realize they're learning! Series Overview: Bursting onto the book scene in late 2009, Weird but True paperbacks-with a distinct colorful design, whimsical typography, and square shape-became instant hits, with more than 700,000 copies of the first two books in print in less than a year. Ultimate Weird but True-the large format, hardcover addition to the series-took this brand to a new level, selling thousands of copies in its first few weeks alone. Born as a monthly page in National Geographic Kids magazine in 2004, "Weird but True" has been the most popular feature every month since its inception.