Train your brain with all kinds of amazing new challenges that will unleash your creativity and bring out the genius within. You'll find crosswords, word searches, cryptograms, tough logic puzzles, memory tests, wacky riddles, and exercises to try with a friend. Time trials test your skills in each chapter. Write-in pages include puzzles and games as well as short explanations of the brain science at work. Tuning and proving your mental mettle has never been so much fun. The activity book is a companion to the popular television show, book series, board game, and other Brain Games products.