This was a fun book about the history of Mathematics as viewed through the lens of pi. I don't much enjoy reading history-of-mathematics books. I halfway remember my history of mathematics. That means that I can't answer any questions about it--but when I read about it, I think Oh yeah, I already knew that. Why am I reading this? Fortunately, Beckman (the author) goes off on some lively rants about tyranny and superstition.
While reading this book, I memorized five more digits of pi. I just couldn't help myself.