A pocket-sized brain gym! Mental games, visual conundrums, logic posers, riddles, illusions—in all, over 500 dazzling, full-color puzzles designed to stretch neurons and shake up your usual way of thinking. Be creative. Be challenged. Push your brain in different 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. Written by David L. Hoyt, the most syndicated puzzle writer in the country, with Merriam-Webster, America’s most trusted dictionary. All in a travel-friendly, gift-friendly 4" x 6" chunky size. In Mixed-Up Definition, unscramble the letters to reveal the definition of a given word.