The Tao of Tangram: History, Problems, Solutions, (Deluxe Book and Wood Tangram Set In Slipcase)
"The challenge of the Tangram is to use seven basic geometric shapes to construct a 'picture.' The rules are simple--all the pieces must be used and they cannot overlap--but each puzzle offers ample challenges to your mental agility. With its beautiful wood tans and storage tray and a fully illustrated book of Tangram history and nearly 700 puzzles, The Tao of Tangram is the ultimate way to master this ancient art."--from the publisher.