William R. Miller, PhD, is Emeritus Distinguished Professor of Psychology and Psychiatry at the University of New Mexico. He introduced motivational interviewing in a 1983 article and in the first edition of Motivational Interviewing (1991), coauthored with Stephen Rollnick. Dr. Miller’s research has focused particularly on the treatment and prevention of addictions and more broadly on the psychology of change. He is a recipient of two career achievement awards from the American Psychological Association, the international Jellinek Memorial Award, and an Innovators Award from the Robert Wood Johnson Foundation, among many other honors. His publications include 65 books and over 400 articles and chapters. His website is https://williamrmiller.net.

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Alyssa A. Forcehimes, PhD, is President of The Change Companies and Train for Change. Prior to joining these organizations, she was on the faculty of Psychiatry and Psychology at the University of New Mexico Health Sciences Center. Her research focuses on processes of motivation for change and on effective methods for disseminating and teaching evidence-based behavioral treatments in real-world settings. Dr. Forcehimes works in addiction, mental health, and health care settings to develop, implement, and evaluate behavior change practices.

Allen Zweben, PhD, is Professor and Associate Dean at the Columbia University School of Social Work. His research and publications have focused primarily on innovative assessment and treatment approaches for substance use problems. Dr. Zweben has been a principal investigator on numerous behavioral and medication trials, including two landmark studies funded by the National Institute on Alcohol Abuse and Alcoholism: Project MATCH, a patient–treatment matching study, and the COMBINE study, a project examining the efficacy of combining pharmacotherapy and psychotherapy interventions for alcohol problems.