Supernatural: Meetings With the Ancient Teachers of Mankind About the Author Author of the major international bestsellers "The Sign and The Seal", "Fingerprints of the Gods" and "Heaven's Mirror", Hancock's books have sold more than 5,000,000 copies and have been translated into 27 languages. His TV appearances and lectures have put his ideas before audiences of tens of millions. "Hancock has invented a new genre" (The Guardian).