'Judith G. Kelley bridges rigorous academic research and policy relevance as realms too often divorced. She is uniquely creative in delivering unexpected conclusions and hard proof. This study offers subtle insights about what actually works in US human trafficking policy. The book sheds light on how reputation affects governments' conduct and laws. It addresses important questions about the relative impact of rating countries, sanctions, diplomacy over time, consistency, and unilateralism in foreign policy. Scorecard Diplomacy is a major work on norms and impactful statecraft, important far beyond its fascinating case study on combating the sex and labor slavery of our time.' Mark P. Lagon, Centennial Fellow, Walsh School of Foreign Service, Georgetown University, Washington, DC, and former US Ambassador-At-Large to Combat Trafficking Persons