Packed with hundreds of new brain busting questions with easy to understand answers that made the first Big Book of Why a best seller. The book is divided by subject area, humans, animals, environment/nature, technology and space, and written in an upbeat manner, each answer is accompanied by either a photo or an illustration to show the reasons why.

"1,001 all-new facts"--Cover. Includes index.

Human body -- Animals -- Nature -- Earth -- Space -- Science -- Technology -- Transportation -- U.S. history -- World history -- World culture -- Arts & media -- Sports & games.