Until now, multiple personality disorder (MPD) has been one of the most baffling mental health problems of our time. In More Than One, Dr. Terri Clark, a psychiatrist who specializes in MPD, provides a faithful yet compassionate examination of this little-understood disorder. Dr. Clark reveals clinical origins and history of MPD, features and characterisitics of persons with MPD, the relationship between child abuse and MPD, the relationship between satanic ritual abuse and MPD, successful therapy methods, plus a glossary and a list of special resources.