My kind of book: A seemingly mundane subject that packs a punch. Those expecting an exhaustive mathematical treatise should remember that this is a HISTORY of pi, including the events and people that colored it. Beckmann is opinionated, and thankfully so! History is a story composed of characters that either advance or impede human progress, and Beckmann shines the spotlight on both, heaping scorn and reverence without regard to who's ox is being gored. In the process, he manages to annoy all the right groups (organized religion, fascists, communists) making him unpopular with some, but rare is the factual rebuttal to any of his charges. Indeed, the primary complaint seems not to be that he's wrong but that he's particularly unforgiving of history's morons. There's enough conceptual math and intriguing history to please both mathematicians and historians, particularly those tired of the politically correct drivel that so permeates popular science today. A truly great read.