The Zen of Magic Squares, Circles, and Stars: An Exhibition of Surprising Structures Across Dimensions - Paperbackby Clifford a. Pickover (Author) Humanity's love affair with mathematics and mysticism reached a critical juncture, legend has it, on the back of a turtle in ancient China. As Clifford Pickover briefly recounts in this enthralling book, the most comprehensive in decades on magic squares, Emperor Yu was supposedly strolling along the Yellow River one day around 2200 B. C. when he spotted the creature: its shell had a series of dots within squares. To