Book excerpt: This book challenges the idea that international law looks the same from anywhere in the world. Instead, how international lawyers understand and approach their field is often deeply influenced by the national contexts in which they lived, studied, and worked. International law in the United States and in the United Kingdom looks different compared to international law in China and Russia, though some approaches (particularly Western, Anglo-American ones) are more influential outside their borders than others. Given shifts in geopolitical power and the rise of non-Western powers like China, it is increasingly important for international lawyers to understand how others coming from diverse backgrounds approach the field. By examining the international law academies and textbooks of the five permanent members of the UN Security Council, Roberts provides a window into these different communities of international lawyers, and she uncovers some of the similarities and differences in how they understand and approach international law.