Donna Eden is the author of Energy Medicine (Putnam Publishing Group, 1998). She has treated over 10,000 individual clients and has taught hundreds of classes, speaking to standing-room-only audiences throughout the United States, Europe, Australia, New Zealand, and South America. Able from childhood to perceive the body's subtle energies, she works with those energies to heal others and to teach others how to work with them.

Caroline Myss is the author of the New York Times bestselling books Invisible Acts of Power, Sacred Contracts, Why People Don't Heal and How They Can, and Anatomy of the Spirit, and is a pioneer and international lecturer in human consciousness. In 2003, she founded the CMED Institute, an educational program that specializes in intensive classes on archetypes, personal power, and mysticism. Her audiotapes include Entering the Castle (Hay House) and Why People Don't Heal and How They Can; Spiritual Madness; and Spiritual Power, Spiritual Practice (Sounds True). Her work is featured on her popular website www.myss.com. She lives in Oak Park, Illinois.

David Feinstein, PhD, is a clinical psychologist who serves as national director of the Energy Medicine Institute.