Bring home The Book of Pi to your math loving friends and family. Perfect for any mathematician, decorate any bookshelf with the first million digits of Archimedes' constant. Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. This book makes for a perfectGiftPi ReferenceGag GiftCollectable ItemClassroom SupplementDon't miss out on this great opportunity to own a unique book which will get attention from your friends, family, and guests. Purchase a copy for yourself or gift it to someone who is a math lover.