Paul Watzlawick was an associate at the Mental Research Institute, Palo Alto, and clinical professor in the department of psychiatry and behavioral sciences, Stanford University Medical Center. An internationally known psychologist, Watzlawick died in 2007.
Janet Beavin Bavelas is a professor emeritus of psychology at the University of Victoria.
The late Don D. Jackson was a founder and director of the Mental Research Institute in Palo Alto, California, and associate professor at the Stanford University School of Medicine. He was coauthor, with Paul Wazlawick and Janet Beavin Bavelas, of Pragmatics of Human Communication.