Arthur Hastings, Ph.D. Research associate, Institute of Noetic Sciences, San Francisco, California; professor, California Institute of Transpersonal Psychology, Menlo Park, California; adjunct professor, John F. Kennedy University, Orinda, California. Coauthor of Argumentation and Advocacy, Group Communication Through Computers, vol. 2, and Changing Images of Man.

James Fadiman, Ph.D. Lecturer, Stanford University, Palo Alto, California; professor, California Institute of Transpersonal Psychology, Menlo Park, California. Coauthor (with Robert Frager) of Personality and Personal Growth; editor of Exploring Madness, The Proper Study of Man; and coeditor of Relax.

James S. Gordon, M.D. Research psychiatrist and consultant on alternative forms of service, Center for Studies of Child and Family Mental Health, National Institute of Mental Health, Rockville, Maryland. Author of Special Study of Alternative Services: Report to the President's Commission on Mental Health and Caring for Youth: Essays on Alternative Services; coeditor and contributor to Mind, Body and Health: Toward an Integral Medicine (in press).