What did Graham Hancock write?

Graham Hancock wrote Fingerprints of the Gods, Magicians of the Gods, Supernatural: Meetings with the Ancient Teachers of Mankind, Underworld: The Mysterious Origins of Civilization, Sign and the Seal: The Quest for the Lost Ark of the Covenant, The Message of the Sphinx: A Quest for the Hidden Legacy of Mankind, and The Divine Spark: A Graham Hancock Reader: Psychedelics, Consciousness, and the Birth of Civilization.