The Joy of Pi
By David Blatner
More than just a mathematical symbol, pi has history and mystery embedded in its never-ending digits. The Joy of Pi is a tribute to the ancient and pop cultural history of this character, which symbolizes the ratio of a circle's circumference to its diameter. The narratives in this book also feature dozens of factoids, cartoons, poems, and jokes. Great to give fans of the Exploratorium's annual Pi Day, too. Paperback, 144 pages.