For some reason, I'd managed to skip this fairly famous pop maths book before, which made it all the nicer to receive it at Christmas from Caroline. It's mostly a biography of Erdos, who was... well... very strange, but also rather impressive. Having said that, it does have a spattering of maths anecdotes. I'd heard most of them before, but the details of Erdos' life made for interesting reading. Altogether, a rather nice book .