Mental games, visual conundrums, logic posters, riddles, illusions—in all, over 500 dazzling full-color puzzles designed to stretch neurons and shake up your usual way of thingking. Be creative. Be challenged. Push your brain in new directions. The puzzles are organized by 12 types with 10 levels of difficulty, each designed to make you feel more curious, intuitive, engaged, and smarter.
