It's endless fun! Opening this beautiful 2-color, lie-flat hardcover spiral book is like unlocking a treasure chest filled with puzzles and creative activities. Begin by taking the seven high-quality wooden tans (NOT cheap and sharp plastic)out of the resealable case bound sturdily inside. Now, you're ready to play--and to solve up to 500 mysterious tangram puzzles, using the seven simple shapes that can be put together again and again in countless figures and forms. Sometimes they're easily solved; other times, the puzzles are baffling. Decide just how hard you want a game to be! Set the clock and challenge your friends to a race, or do these brain stumpers on your own by arranging the pieces so they all touch, lie flat, or don't overlap. Make two separate shapes from a single set. If you happen to feel artistic, tell a story with the tangrams or create beautiful silhouettes for pure pleasure. One thing is for sure: you'll always find this ancient test-of-wits enjoyable, fascinating, and perplexing.