A fun, yet informative series that offers a chance to delve deep into a wide range of fascinating subjects from nature, history, and science. Full-color, fun, and crammed with facts, DK's Secret Worlds take a fresh look at familiar subjects with brilliant results! Kids age 9 and up can delve into a wide range of subjects from nature to history to science for researching school projects, sating a curious appetite, or just for the love of reading. Tried-and-tested Web sites and a Mega-reference section are just two of the innovative features that will keep kids and parents coming back for more. Priced to collect, these dramatically designed books are a valuable addition to any child's bookshelf.