Patrcia Cornwell books, her books have to do with a medical examiner Kay Scarpetta, and I love the supsense in the book, because theres more to it then just solving a murder.
I enjoy books on cosmology, theoretical physics, evolution; generally science related. But these particular fields do I read more of my time. I also enjoy books that try to prove or disprove the existance of a God, or gods. And that, because they contain quite a bit of evolutionary anthropological knowledge, and I within paradox (though the atheism seems to be winning).
I have only recently began reading novel. I have read The Brethren and some other book by John Grisham. Though I found the story lines to be so closely generally equal, that I will never read another of his. I have also read the first and third book of Harry Potter, in which they were both equally intriguing. That's about it.
I'll have to admit I'm a fan of Franz Kafka as well - which is a genre on its own. Pyschological thrillers, murder stories, horror...and quite a lot of classic literature.