The World in Court: Understanding International Law in Practice offers a comprehensive exploration of international law, emphasizing its real-world applications. It covers the historical evolution of international law, key legal sources, and foundational principles that shape global governance. The book examines the primary actors in international law, including states, international organizations, and non-state actors, and delves into key topics such as jurisdiction, state immunities, human rights law, and humanitarian law. It explores the role of international criminal law, environmental law, and dispute resolution mechanisms, with a focus on institutions like the International Court of Justice and the International Criminal Court. The book addresses the challenges of enforcement and compliance, highlighting the limitations and opportunities within the global legal system. Concluding with a reflection on current challenges like geopolitical tensions and climate change, it offers recommendations for strengthening global legal frameworks and promoting cooperation and justice.