Jill Duerr Berrick, PhD, MSW, is Zellerbach Family Foundation Professor in the School of Social Welfare at the University of California, Berkeley. Dr. Berrick's research focuses on the relationship of the state to vulnerable families. She has written or co-written ten books on topics relating to family poverty, child maltreatment, and child welfare. Her interests target the intersect between poverty, early childhood development, parenting, and the service systems designed to address these issues. Berrick's research approach typically relies upon the voices of service system consumers and providers to identify the impacts of social problems and social service solutions on family life.