Systems of Psychotherapy

James O. Prochaska, PhD, (1942-2023) was Emeritus Professor of Psychology and founding Director of the Cancer Prevention Research Consortium at the University of Rhode Island. Co-developer of the Transtheoretical Model, Jim was the principal investigator on grants from the National Institutes of Health totaling more than $90 million and was recognized as one of the most cited authors in psychology. John C. Norcross, PhD, ABPP, is Distinguished Professor and Chair of Psychology at the University of Scranton, Clinical Professor of Psychiatry at SUNY Upstate Medical University, and a board-certified clinical psychologist who maintained a part-time practice for decades. Among John's numerous books are Psychotherapy Relationships That Work, Handbook of Psychotherapy Integration, and Insider's Guide to Graduate Programs in Clinical and Counseling Psychology. Judith J. Prochaska, PhD, MPH, is Senior Associate Vice Provost for Clinical Research Governance at Stanford University and Professor in the Stanford Prevention Research Center. She directs the graduate program in Community Health and Prevention Research and teaches on health behavior change theory. Judith has led multiple research grants from the National Institutes of Health with funding totaling more than $30 million.