Perk Clark began working in public behavioral health treatment programs in 1974, and has been in private practice in Tucson Arizona since 1982 specializing in the conduct of psychotherapy and in organizational development. In the fall of 2000 he was an adjunct professor at the University of Arizona Department of Psychology teaching a course he developed on transpersonal psychotherapy entitled “The Psychology of Spirituality and Religion”.

His studies of transpersonal psychology began in the early 1970’s, as inspired by the California Institute For Transpersonal Psychology, and he received his Masters of Social Work degree from Arizona State University in 1984. He has studied gestalt therapy, bioenergetic analysis, ego psychology, object-relations theory, gestalt family therapy, short-term counseling methods and transpersonal psychology. He developed a model of clinical supervision that he has applied in a number of behavioral health settings. He attends a clinical supervision group that began in 1982, and has presented several times a 12-hour training in the clinical supervision of psychotherapy that links the literature on the topic with real world cases and recent changes State licensing laws.

His work with organizations began in behavioral-health firms and has now been accomplished in diverse professional settings: hospitals, law firms, retail organizations, and high-tech computer manufacturing industries. His training came from University-level courses on organizational change and organizational development. He specializes in situations that are complex and highly charged, and is often sought-after when an organization is reporting diminished profits, morale, efficiency, or functioning. He concentrates on organizational change that is tangible, can be measured, and can be willingly accomplished by the members in the concerned setting. His resume is available at: https://psychod.com/RESUME.pdf

He has published several papers including (1988) Computer Uses in Social Work;  (2000) Transpersonal Group Psychotherapy; and (2005) R. D. Laing:  What Was Therapeutic About That?  His public presentations include: