The University of Pennsylvania School of Social Policy & Practice (SP2) is the only graduate program in the world addressing the continuum of critical elements of social change. In its second century of leadership in social work theory and practice, SP2 has expanded its programs to ensure engagement in the area of government and non-government policy development and resource delivery systems. SP2 seeks to further its contributions as one of the nation's leading centers of knowledge development, knowledge transfer, and knowledge application in the human services. This vision is integral to, and reflected in, all aspects of the School's educational and research programs as well as in its work on the University of Pennsylvania campus, in the Philadelphia community, and in its social change efforts nationally and internationally.