David Ovason has published numerous books in the arcane field. His first, a study of the secret texts of the French prophet, Nostradamus, The Nostradamus Code, has been hailed as a masterpiece of its kind. His second work, The Zelator, presents the fascinating autobiography of the magus, Mark Hedsel - a personal story which tells of the tribulations and triumphs experienced by a man who sough initiation in the modern world. More recently he has written Nostradamus: Prophecies for America, The Secret Symbolism of the Dollar Bill and The History of the Horoscope. Lost Symbols? was originally published 10 years ago as The Secret Zodiacs of Washington, D.C.