Paul D. Burley is an engineer and environmental geologist who has researched world mythology, pictographic and architectural symbolism, and sacred landscapes expressing spiritual traditions around the world. His journey to understand the meaning of Native American medicine wheels led him to study sacred symbolism exhibited by cultures over tens of thousands of years. His analysis of that symbolism has resulted in a new understanding of the sacred lifeway of ancient and indigenous peoples. Paul is the author of The Business Owner's Guide to Environmental Site Assessment.