Tired of the same old word games? Looking for a new twist on brain teasers? Try these on for size! Every one of these puzzles challenge you in a whole new way--through your ability to perceive and manipulate forms and shapes. Logical deduction and spatial perception are the weapons, and hours of perplexing fun is the prize. As you solve the easier puzzles, you'll learn the principles and tricks needed to tackle the more complex ones. Everyone will love this myriad of mind-boggling conundrums! ."..true brain food..."-- "Chicago Tribune. 96 pages, 220 b/w illus., 5 3/8 x 8 1/4.