Graham Hancock is the author of the major international bestsellers The Sign and the Seal, Fingerprints of the Gods and Heaven's Mirror. His books have sold more than five million copies worldwide and have been translated into 27 languages. He is an extremely successful investigative journalist, having been Editor of Condé Nast's Traveller magazine and East Africa Correspondent for the Economist. His public lectures and TV appearances, including the three-hour series Quest for the Lost Civilization, have put his religious and historical theories before audiences of tens of millions. He has become recognized as an unconventional thinker who raises legitimate questions about humanity's history, religion and prehistory and offers an increasingly popular challenge to the entrenched views of orthodox scholars.