books.google.com - Three prominent American therapists detail their theories and strategies for promoting human change and dealing with related psychological problems....https://books.google.com/books/about/Change_Principles_of_Problem_Formation_a.html?id=HUoS92aG8IoC&utm_source=gb-gplus-shareChange; Principles of Problem Formation and Problem Resolution
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.
John H. Weakland died in 1995.
Richard Fisch is a psychiatrist with a private practice in Palo Alto, California.