You know, at least I got through DaVinci code (though maybe only because it was an audiobook and I had a very long drive). Try reading anything by Robert Ludlum. I liked the Bourne movies, but I couldn't get 50 pages into that. It was like reading third grade fiction projects. I can't believe writing that bad could be published.
Thanks for the warning about Ludlum. The sad fact is, Dan Brown's junk is better than a lot of other stuff I borrow from the "New" rack at the library. At least Brown I can laugh at. Bad is bad, but laughably bad is better.