William R. Miller, PhD, is Emeritus Distinguished Professor of Psychology and Psychiatry at the University of New Mexico. Fundamentally interested in the psychology of change, he is a cofounder of motivational interviewing and has focused particularly on developing and testing more effective treatments for people with alcohol and drug problems. Dr. Miller has published over 400 scientific articles and chapters and 50 books, including the groundbreaking work for professionals Motivational Interviewing, Third Edition, and the self-help resource Controlling Your Drinking, Second Edition. He is a recipient of the international Jellinek Memorial Award, two career achievement awards from the American Psychological Association, and an Innovators in Combating Substance Abuse Award from the Robert Wood Johnson Foundation, among many other honors. The Institute for Scientific Information has listed him as one of the world's most highly cited researchers.

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.