Gregory Shaffer is the Scott K. Ginsburg Professor of International Law at Georgetown University Law Center and former President of the American Society of International Law. The award-winning author of Emerging Powers and The World Trade System (2021). Shaffer is the author of eleven books. Wayne Sandholtz is a political scientist specializing in international law, international courts, and human rights. Since 2012 he holds the John A. McCone Chair in International Relations at the University of Southern California. His most recent books include Prohibiting Plunder: How Norms Change (2007) and Research Handbook on the Politics of International Law (2017, co-editor).