Donna Eden is among the world's most sought after, authoritative and joyous spokespersons for energy medicine. Her abilities as a healer are legendary. She has taught some 50,000 people worldwide, both laypeople and professionals, how to understand the body as an energy system. David Feinstein, Ph.D., is a clinical psychologist who serves as national director of the Energy Medicine Institute.  Gary Craig is the founder of Emotional Freedom Techniques (EFT), the most widely used of all the techniques within the burgeoning new field of energy psychology.