Bill Plotkin, Ph.D., is a depth psychologist, wilderness guide, and agent of cultural evolution. As founder of Colorado’s Animas Valley Institute, he has, since 1980, guided thousands of women and men through nature-based initiatory passages, including a contemporary, Western adaptation of the pan-cultural vision fast. He’s also been a research psychologist (studying nonordinary states of consciousness), professor of psychology, rock musician, and whitewater river guide. Bill is the author of Soulcraft: Crossing into the Mysteries of Nature and Psyche (an experiential guidebook), Nature and the Human Soul: Cultivating Wholeness and Community in a Fragmented World (a nature-based stage model of human development), and, available in April 2013, Wild Mind: A Field Guide to the Human Psyche (an ecocentric map of the psyche — for healing, growing whole, and cultural transformation). He has a doctorate in psychology from the University of Colorado at Boulder.