Amazon.com description: Product Description: Packed with over 500 mind-enhancing exercises, this book is the ultimate tool for attaining and maintaining optimalbrain health. Including word games, visual and spatial challenges, logic puzzlers, and memory boosters, the activitiesin this illustrated collection will improve overall mental fitness and the abilities to concentrate, analyze, and problemsolve. Puzzles include Word Scramblers, Anagrams, Riddles, Whats Missing?, Trivia, and more. With multiple levels of difficulties and themes, this comprehensive activity book is challenging, entertaining, and a terrific way to keep those mental muscles moving and cerebral sparks flying.