Book excerpt: Designed to be used-not read!-this all-in-one reference offers pages with ingenious multitasking functions. Pages in this Swiss Army knife of books do double duty as a cup or a sundial, while other handy on-the-spot reference tools include time zone charts and metric conversion tables. Find water in the desert, identify poisonous plants and treat a snakebite. Turn to the leisure section and teach yourself to dance or to play a game of checkers. Now that's a good weekend!Useful and entertaining, Use This Book! will appeal to fans of the popular Worst-Case Scenario series. This handy, portable book comes with an engaging design and lots of useful diagrams.