Kathryn Sikkink is the Ryan Family Professor of Human Rights Policy at HKS. Sikkink works on international norms and institutions, transnational advocacy networks, the impact of human rights law and policies, and transitional justice. Her publications include The Hidden Face of Rights: Toward a Politics of Responsibilies; Evidence for Hope:Making Human Rights Work in the 21st Century; The Justice Cascade: How Human Rights Prosecutions are Changing World Politics (awarded the Robert F. Kennedy Center Book Award, and the WOLA/Duke University Award). She holds an MA and Ph.D. from Columbia University. Sikkink has been a Fulbright Scholar in Argentina and a Guggenheim fellow. She is a member of the American Philosophical Society, the American Academy of Arts and Sciences and the Council on Foreign Relations, and a member of the editorial board of International Organization and the American Political Science Review.