New Hampshire born author, Dan Brown, is most famous for his tremendously successful novel, The Da Vinci Code. He relates the treasure hunt sort of story within a 24-hour period of time, using themes of keys, symbols, codes, cryptography, and conspiracy theories. They also many times feature historical themes and controversial Christianity motifs. His parents involved their children in the family dynamics of using codes, cyphers, crossword puzzles, and treasure hunts to tie together math, music, and languages. Brown's growing up years gave an excellent base for his future writings.
Brown was inspired to be a writer of thrillers after reading Sidney Sheldon's novel The Doomsday Conspiracy. He became a full-time writer in 1996. Angels and Demons was his second book published and was the first novel to include the lead character, Robert Langdon. His first few novels had very little success, but the fourth novel, The Da Vinci Code proved to be one of the most popular books of all time. With that success, his first three books also became very well received with all four novels being listed on the New York Times best sellers list at one time! The next novel, The Lost Symbol, sold over 1,000,000 copies its first day.
Since Brown's books are heavily researched, it would sometimes take two years to finish a novel. In 2006 The Da Vinci Code and Inferno were adapted to screenplays, and were very controversial. Brown has stated that he has potentially twelve books in line for the future.