FOLD! A Brain Power Decathlon of 10 Fiendishly Fun Folding Puzzles. You'd never guess folding ten brilliant patterns could make you sweat like this- or bring success so sweet. Famed puzzle inventor Ivan Moscovich created FOLD brainteasers to help you bulk up your mental muscle and have fun in the process! These ten smart origami challenges will send your hands racing - folding, unfolding, twisting, turning, and flexing to find the solutions. Keep at it! The vexing twists and turns of your mind will lead you to gratifying accomplishment eventually! Then, you can show the world the beautiful results! Are they easy? Not on your life. FOLD puzzles will astound you, confound you, and gather folks around you!