Atheists, what are some good books on evolution?

I really liked The Ancestor's Tale. I'm not just saying that because we're 'supposed' to like Richard Dawkins, it's a really enjoyable book. It's also written for a general audience with an interest in evolution and/or natural history, so you don't need to be a science geek like me to be able to understand it- Dawkins is very good at using ogies to explain the more difficult concepts and he starts right at the beginning with pretty much everything he writes about. The Ancestor's Tale also has wonderful pictures.