Antoine Douaihy, MD, is a Professor of Psychiatry & Medicine at the University of Pittsburgh School of Medicine, Senior Academic Director of Addiction Medicine Services of Western Psychiatric Hospital, Director of Addiction Psychiatry Fellowship of University of Pittsburgh Medical Center (UPMC), Director of Tobacco Treatment Service ofUPMC, and Vice Chair, Pittsburgh HIV Commission. His books include Humanizing Addiction Practice" published by Springer (2018) and a most recent 2nd edition of "Motivational Interviewing, A Guide for Medical Trainees, published by OUP (2023). Dr. Douaihy has focused his career on patient care, education, training, programs development, advocacy, and research in the field of addiction, psychology of behavior change, motivational interviewing, and HIV Psychiatry. He has a well-established record in conducting multisite clinical trials. He has served and currently serves as Principal Investigator (PI), Co-I, or a consultant on studies funded by NIAAA, NIDA, NIMH, SAMHSA, HRSA, and CDC. In recognition for his dedication to education, He has been the recipient of multiple teaching awards including the Leonard Tow Humanism in Medicine Award and the Donald Fraley Award for Medical Student Mentoring, recognizing him for the qualities of a masterful clinician, academician, educator, mentor, contributor to the medical school community and the community at large. His publications include research papers, clinical writings, patients and family educational materials, and academic books about substance use disorders and motivational interviewing. No other authors will be involved in the writing of this proposed book.