[Alneyan]

Wasn't there a claim by Dan Brown, in the opening of the book, saying something along the lines of "all the documents presented therein are accurate"? That certainly isn't verbatim quoting, of course, as I've never got anywhere near the English version.

That claim alone sounds more like a marketing ploy than something else, but I have always found it odd, given some of the material presented in the book (say, I don't live in Paris, but I'm not sure I would go around town the way his characters does... unless I'm the sort of chap who goes through the Bronx to go from one end to Fifth Avenue to the other).