Yeah I read Angels and Demons first sophomore year of high school and had to do a presentation on it for English. I didn't even know he had a book before it or after it and it was right before The Da Vinci Code mania blew open. A part of me preferred it (the nerd side) because it had lots more to do with insanely cool theories and facts revolving around science as well as awesome the religion parts of it. That and it had the very interesting ambigrams. A good fun read.

BTW....the movie is beautiful. To each his own but seriously....if you haven't read the book, I doubt you'll very much enjoy the movie. That and if all you are looking for is a smarter National Treasure. THIS IS NOT AN ACTION/THRILLER. It's dialogue driven. I'd say mystery is it's genre.