Graham Hancock (born August 2, 1950) is a British writer an journalist. His books include Lords of Poverty, The Sign and the Seal, Fingerprints of the Gods, Keeper of Genesis (US name: The Message of the Sphinx), The Mars Mystery, Heaven's Mirror (with wife Santha Faiia), Underworld: The Mysterious Origins of Civilization, and Talisman: Sacred Cities, Secret Faith (with co-author Robert Bauval). He also wrote and presented the Channel 4 documentaries Underworld: Flooded Kingdoms of the Ice Age and Quest for the Lost Civilisation.