Secrets of the Lost Symbol is a sweeping tour, guided by renowned experts, through the many provocative ideas raised in The Lost Symbol. Dan Brown's sequel to the Da Vinci Code has introduced fans to a whole new world of secret societies, ancient mysteries, hidden symbols, and New Age science and religion. But what did he get right and what did he miss? What's the truth behind the book's themes and characters? The New York Times bestselling authors of Secrets of the Code, Dan Burstein and Arne de Keijzer, sort out reality, speculation, fact, and fiction. They present riveting new ideas drawn from the views of the world's leading authorities-historians; experts on codes, art, and symbols; Freemasons; believers in Noetics; theologians; philosophers; and scientists-many of whose works Dan Brown himself relied upon in developing his intriguing tale.