He is the author of A Clinician’s Guide To Twelve-Step Recovery (Norton, 2009) and the chapter “Addiction Treatment Settings” in the forthcoming APA Handbook of Clinical Psychology. He has presented nationally on substance use disorders and related topics. He is currently a member of the Board of the Society of Addiction Psychologists, a division of the APA. He has a private practice in Philadelphia, PA., with a focus on addiction, individual therapy and couples/family therapy. His website is http://www.drmarkschenker.com.