- Hidden Meanings: A Study of the Founding Symbols of Civilization
- Sacred Symbols of the Dogon: The Key to Advanced Science in the Ancient Egyptian Hieroglyphs
- The Velikovsky Heresies: Worlds in Collision and Ancient Catastrophes Revisited
- Point of Origin: Gobekli Tepe and the Spiritual Matrix for the World’s Cosmologies
- The Mystery of Skara Brae: Neolithic Scotland and the Origins of Ancient Egypt