Nico Krisch is a professor of international law at the Geneva Graduate Institute. He has held faculty positions at the London School of Economics, the Hertie School in Berlin, and the Institut Barcelona d'Estudis Internacionals, as well as visiting appointments at Harvard and Columbia Law Schools. His research interests concern the legal structure of global governance and the politics of international law. His 2010 book, Beyond Constitutionalism: The Pluralist Structure of Postnational Law (OUP), received the Certificate of Merit of the American Society of International Law, and in 2019, he was awarded the inaugural Max Planck-Cambridge Prize for International Law.Ezgi Yildiz is an assistant professor at California State University, Long Beach, and a research associate at the Global Governance Center of the Geneva Graduate Institute. She is also a member of the Expert Group for the EU's Anti-Torture Regulation and the Coordinating Committee of the European Society of International Law's Interest Group on Social Sciences and International Law. Previously, she was a postdoctoral researcher at the Geneva Graduate Institute and the Carr Center for Human Rights Policy at Harvard Kennedy School, and a visiting fellow at the Minda de Gunzburg Center for European Studies at Harvard University.

Nico Krisch and Ezgi Yildiz have produced the rare volume that both opens new space for analytic inquiry and offers sharp insights for navigating it. The volume should-and, I think, will-have a lasting impact on how many international legal and policy experts approach the field.

• Acknowledgements Summary Table of Contents List of Contributors List of Abstracts Preface Part 1 Introduction 1: The Many Paths of Change in International Law: A Frame Part 2 Strategies of Change 2: Trump as a Change Agent in International Law: Ends, Means, and Legacies 3: Norm-instability as a Strategy in International Law-making: The Case of Self-defence against Non-state Actors 4: Transnational Lawmaking Coalitions as Change Agents in International Law Part 3 Forms of Change 5: Tracing International Legal Change in Genocide Prevention 6: The Making of Lawmaking: The ILC Draft Conclusions on the Identification of Customary Law 7: The Turn to Metrics in International Environmental Law Part 4 Forces of Change 8: Resurgent Authoritarianism, Rights, and Legal Change 9: The Future of Oceans: The Role of Human Rights Law and International Environmental Law in Shaping the Law of the Sea 10: World Trade Law and the Rise of China: Struggles over Subsidy Rules Part 5 Situating Change 11: The Appellate Body's Judicial Pathway: Precedent, Resistance, and Adaptation 12: Whose International Law is Changing? The Practice of Fragmented Communities Constructing Legal Change 13: A Quiet Revolution in the Making? The Changing State Authority in Treaty Interpretation 14: The Path not Taken: On Legal Change and its Context Part 6 Epilogue 15: Epilogue: Fragmentary Thoughts on Informal Change

Nico Krisch is a professor of international law at the Geneva Graduate Institute. He has held faculty positions at the London School of Economics, the Hertie School in Berlin, and the Institut Barcelona d'Estudis Internacionals, as well as visiting appointments at Harvard and Columbia Law Schools. His research interests concern the legal structure of global governance and the politics of international law. His 2010 book, Beyond Constitutionalism: The Pluralist Structure of Postnational Law (OUP), received the Certificate of Merit of the American Society of International Law, and in 2019, he was awarded the inaugural Max Planck-Cambridge Prize for International Law.Ezgi Yildiz is an assistant professor at California State University, Long Beach, and a research associate at the Global Governance Center of the Geneva Graduate Institute. She is also a member of the Expert Group for the EU's Anti-Torture Regulation and the Coordinating Committee of the European Society of International Law's Interest Group on Social Sciences and International Law. Previously, she was a postdoctoral researcher at the Geneva Graduate Institute and the Carr Center for Human Rights Policy at Harvard Kennedy School, and a visiting fellow at the Minda de Gunzburg Center for European Studies at Harvard University.

Nico Krisch and Ezgi Yildiz have produced the rare volume that both opens new space for analytic inquiry and offers sharp insights for navigating it. The volume should-and, I think, will-have a lasting impact on how many international legal and policy experts approach the field.

• Acknowledgements Summary Table of Contents List of Contributors List of Abstracts Preface Part 1 Introduction 1: The Many Paths of Change in International Law: A Frame Part 2 Strategies of Change 2: Trump as a Change Agent in International Law: Ends, Means, and Legacies 3: Norm-instability as a Strategy in International Law-making: The Case of Self-defence against Non-state Actors 4: Transnational Lawmaking Coalitions as Change Agents in International Law Part 3 Forms of Change 5: Tracing International Legal Change in Genocide Prevention 6: The Making of Lawmaking: The ILC Draft Conclusions on the Identification of Customary Law 7: The Turn to Metrics in International Environmental Law Part 4 Forces of Change 8: Resurgent Authoritarianism, Rights, and Legal Change 9: The Future of Oceans: The Role of Human Rights Law and International Environmental Law in Shaping the Law of the Sea 10: World Trade Law and the Rise of China: Struggles over Subsidy Rules Part 5 Situating Change 11: The Appellate Body's Judicial Pathway: Precedent, Resistance, and Adaptation 12: Whose International Law is Changing? The Practice of Fragmented Communities Constructing Legal Change 13: A Quiet Revolution in the Making? The Changing State Authority in Treaty Interpretation 14: The Path not Taken: On Legal Change and its Context Part 6 Epilogue 15: Epilogue: Fragmentary Thoughts on Informal Change

Nico Krisch is a professor of international law at the Geneva Graduate Institute. He has held faculty positions at the London School of Economics, the Hertie School in Berlin, and the Institut Barcelona d'Estudis Internacionals, as well as visiting appointments at Harvard and Columbia Law Schools. His research interests concern the legal structure of global governance and the politics of international law. His 2010 book, Beyond Constitutionalism: The Pluralist Structure of Postnational Law (OUP), received the Certificate of Merit of the American Society of International Law, and in 2019, he was awarded the inaugural Max Planck-Cambridge Prize for International Law.Ezgi Yildiz is an assistant professor at California State University, Long Beach, and a research associate at the Global Governance Center of the Geneva Graduate Institute. She is also a member of the Expert Group for the EU's Anti-Torture Regulation and the Coordinating Committee of the European Society of International Law's Interest Group on Social Sciences and International Law. Previously, she was a postdoctoral researcher at the Geneva Graduate Institute and the Carr Center for Human Rights Policy at Harvard Kennedy School, and a visiting fellow at the Minda de Gunzburg Center for European Studies at Harvard University.

Nico Krisch and Ezgi Yildiz have produced the rare volume that both opens new space for analytic inquiry and offers sharp insights for navigating it. The volume should-and, I think, will-have a lasting impact on how many international legal and policy experts approach the field.

• Acknowledgements Summary Table of Contents List of Contributors List of Abstracts Preface Part 1 Introduction 1: The Many Paths of Change in International Law: A Frame Part 2 Strategies of Change 2: Trump as a Change Agent in International Law: Ends, Means, and Legacies 3: Norm-instability as a Strategy in International Law-making: The Case of Self-defence against Non-state Actors 4: Transnational Lawmaking Coalitions as Change Agents in International Law Part 3 Forms of Change 5: Tracing International Legal Change in Genocide Prevention 6: The Making of Lawmaking: The ILC Draft Conclusions on the Identification of Customary Law 7: The Turn to Metrics in International Environmental Law Part 4 Forces of Change 8: Resurgent Authoritarianism, Rights, and Legal Change 9: The Future of Oceans: The Role of Human Rights Law and International Environmental Law in Shaping the Law of the Sea 10: World Trade Law and the Rise of China: Struggles over Subsidy Rules Part 5 Situating Change 11: The Appellate Body's Judicial Pathway: Precedent, Resistance, and Adaptation 12: Whose International Law is Changing? The Practice of Fragmented Communities Constructing Legal Change 13: A Quiet Revolution in the Making? The Changing State Authority in Treaty Interpretation 14: The Path not Taken: On Legal Change and its Context Part 6 Epilogue 15: Epilogue: Fragmentary Thoughts on Informal Change