Paul Williams, Ph.D., is a training and supervising analyst with the British Psychoanalytical Society and a consultant psychotherapist in the British National Health Service, as well as a member of the Royal Anthropological Institute. From 2001-2007 he was joint Editor-in-Chief, with Glen Gabbard, of the International Journal of Psychoanalysis. He has written widely on the subjects of personality disorders and psychosis, and co-authored, with Murray Jackson, Unimaginable Storms: A Search for Meaning in Psychosis (Karnac, 1994).