The Artist and the Mathematician by Amir Aczel;
New Theories of Everything by John Barrow; and
Super Crunchers by Ian Ayres.
All three are pop science of various flavours (as the titles suggest, variously covering maths, statistics and, well, pretty much everything) which I've reviewed for the Fortean Times in recent months, all of which are interesting if flawed. I've also just submitted another review, of David Toomey's The New Time Travellers which is highly recommended for anyone with a passing interest in real-life adventures in time and space.