Robert Schilling is Professor of Social Welfare at the School of Public Affairs, UCLA. He is also affiliated with the Center for HIV Identification, Prevention and Treatment, and the AIDS Institute, both at UCLA. Until 1999, he was Professor at Columbia University School of Social Work, where he founded and directed the Social Intervention Group. In his early career, he practiced in child welfare, youth, and developmental disability settings. In his research, Professor Schilling seeks to develop, adapt, and test sociobehavioral interventions designed to ameliorate social problems of low income populations. The bulk of Schilling’s research is focused on substance abuse and HIV transmission, and his studies have been conducted in sites as disparate a small soup kitchen, street outreach programs, sexually transmitted disease clinics, emergency departments, and primary care, detoxification and methadone clinics. His research has been funded by the National Institutes of Health, the Centers for Disease Control and Prevention, and private foundations. Schilling’s work has appeared in Social Work, Science, The New England Journal of Medicine, The Journal of the American Medical Association, The American Journal of Public Health, and The American Psychologist. He is now conducting research on drug abuse and infectious disease in Asia, and on the linkage between child welfare and the drug abuse treatment systems in the US.