I have read all of Dan Brown's novels. My favorite by him was either this one or Digital Fortress--I can't remember for sure right now!
All of his novels are interesting and good. I read his first four books right after each other. I don't recommend doing that. He has a definite pattern to who the "bad guy" is and when you read a couple in a row, you can spot the bad guy in the first few pages. His books are more fun when it takes you by surprise. I recommend any of his novels.
