John A. Rush, PhD, ND, is a Professor of Anthropology at Sierra College, Rocklin, California who teaches courses in Physical Anthropology and Magic, Witchcraft and Religion. Dr. Rush’s publications includeClinical Anthropology: An Application of Anthropological Concepts within Clinical Settings(1996),Stress and Emotional Health: Applications of Clinical Anthropology(1999),Spiritual Tattoo: A Cultural History of Tattooing, Piercing, Scarification, Branding, and Implants(2005), andThe Twelve Gates: A Spiritual Passage through the Egyptian Books of the Dead(2007). He is also a Naturopathic Doctor and Medical Hypnotherapist in private practice.