I've been reading The Da Vinci Code for the last week. I would say that it is pretty good. The story is flowing quite well and the topics in question are well researched. A lot of people say that Dan Brown's writing style is not that great. However, I disagree with this opinion. Brown's writes in a way that puts himself on an equal level with the reader. This also goes well with the book's early theme of male/female balance.
Anyway, in tribute to one of the main tools that are used to "crack the secrets and codes," The Hek gives you this: