The Da Vinci Code has sold more than 80 million copies. One trade journal says that is more than any other book in print, ever. I think he may mean since the publishing industry started keeping track of sales several decades a go and he probably is not including the Bible in that. Nonetheless, the novelist Dan Brown has become a major source of religious information in the western world, especially among the unchurched.
The Da Vinci Code explored the feminine side of the spiritual. Angels & Demons plays around with the new physics and what it may or may not tell us about God. (The movie version was recently released.) Brown's newest novel is The Lost Symbol. What is it really about? There is an interesting clue in a new book by Simon Cox, a writer who has made an industry of pulling together factual information related to each of Brown's novels.
Cox quotes from the Encyclopedia Britannica summary of the beliefs of the Church of Jesus Christ of Later-day Saints, often called Mormons: "Mormon doctrine diverges from the orthodoxy of established Christianity, particularly in its polytheism, in affirming that God has evolved from man and that men might evolve into gods." Then, Cox makes a very interesting observation: "No better description could fit the concept that Dan Brown is exploring with the pages of The Lost Symbol." (Page 183, Decoding the Lost Symbol: 2009, Simon & Schuster.)