Ian Hurd is Professor of Political Science and Director of the Weinberg College Center for International and Area Studies at Northwestern University, where he teaches international politics and law. His research combines contemporary global affairs with attention to the conceptual frames used to make sense of the world. His previous books include How to Do Things with International Law (2017), After Anarchy: Legitimacy and Power in the UN Security Council (2007), which won the 2008 Chadwick F. Alger Prize, Oxford Handbook of International Organizations (co-editor, 2017), and The UN Security Council and the Politics of International Authority (co-editor, 2008). He has been a visiting scholar at the American Bar Foundation, the Woodrow Wilson School at Princeton, Sciences Po in Paris, and elsewhere, and is past-Chair of the International Organization section of the International Studies Association.