Sam Loyd's Book of Tangrams - book
Dimensions: 9 1/3 in x 8 in x 1/4 in / 23.7 cm x 20.2 cm x 0.5 cm
Author: Sam Loyd
The challenge of the tangram lies in the proper arrangement of seven geometrical pieces into a variety of different shapes. This classic by a famed puzzle expert features 700 tangrams and solutions, plus a charming satirical commentary on the puzzle's origins, its religious significance, and its relationship to mathematics.