It’s a pocket-size brain gym - more than 500 full-color puzzles!
Inside you'll find mental games, visual challenges, logic posers, riddles, and illusions, each designed to stretch neurons and give the brain a workout—all in a format that will fit in your pocket.
Author: Ivan Moscovich.
Paperback; 440 pages.
Measures: approx. 4 x 1 x 6 inches.