Dan Brown  (born June 22, 1964) is an American author of thriller fiction, best known for the 2003 bestselling novel, The Da Vinci Code. Brown's novels, which are treasure hunts set in a 24-hour time period, feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories. His books have been translated into over 40 languages, and as of 2009, sold over 80 million copies. Two of them, The Da Vinci Code and Angels & Demons, have been adapted into feature films. The forme ...