Brian L. Weiss, M.D., is America's leading authority on past-life regression therapy and the author of multiple books, including the New York Times bestseller Many Lives, Many Masters. As a traditional psychotherapist, he was astonished and skeptical when one of his patients began recalling past-life traumas that seemed to hold the key to her recurring nightmares and anxiety attacks. His skepticism was eroded, however, when she began to channel messages from "the space between lives" that contained remarkable revelations about Dr. Weiss's family and his dead son. Using past-life therapy, he was able to cure the patient and embark on a new, more meaningful phase of his own career.

A graduate of Columbia University and Yale Medical School, Dr. Weiss is also chairman emeritus of psychiatry at the Mount Sinai Medical Center in Miami. He conducts national and international seminars and experiential workshops as well as training programs for professionals.