Reading suggestions?

Having finally gotten around to replacing my Boston Public Library card, I'm in the mood to read. Any recommendations? In general, I prefer nonfiction to fiction; in fiction, I gravitate toward mysteries. (Not fantasy or SF. Yeah, I know, I'm weird.) In nonfiction, history, history of science, stuff about evolution, stuff about language. And I'm open to other ideas. (I've read The Devil in Dover, which I recommend, BTW.)