He received his PhD from Columbia University and was on their faculty teaching finance and management in their graduate school of business. He moved to Chicago to work for an oil company, and after focusing on business for many years, he earned a doctorate in clinical psychology and then became a Jungian analyst. The shamanic work he does is drawn from a blend of North American and South American indigenous trainings and is influenced by Jungian analytical psychology. He has trained with Peruvian shamans and through Dr. Alberto Villoldo’s Healing the Light Body School, where he has been on staff. He has worked with shamans in South America, the United States, Canada, Australia, Ethiopia, and Outer Mongolia. Carl Greer is involved in various businesses and charities, has taught at the C. G. Jung Institute of Chicago and been on the staff of the Replogle Center for Counseling and Well-Being, and has held workshops on Jungian and shamanic topics. He is the best-selling, award-winning author of Change Your Story, Change Your Life and Change the Story of Your Health, and The Necktie and The Jaguar. His new book, Go Within to Change Your Life, will be published by Chiron Publications.