Mary E Larimer Editor

G. Alan Marlatt, PhD, until his death in 2011, was Director of the Addictive Behaviors Research Center and Professor of Psychology at the University of Washington. For over 30 years, Dr. Marlatt conducted pioneering work on understanding and preventing relapse in substance abuse treatment and was a leading proponent of the harm reduction approach to treating addictive behaviors. Mary E. Larimer, PhD, is Professor of Psychiatry and Behavioral Sciences and Adjunct Professor of Psychology at the University of Washington, where she is also Associate Director of the Addictive Behaviors Research Center and Director of the Center for the Study of Health and Risk Behaviors. Katie Witkiewitz, PhD, is Associate Professor of Psychology at the University of New Mexico, with a joint appointment at the Center on Alcoholism, Substance Abuse, and Addictions.