The 5th edition of Public International Law continues the book's accessible, student-friendly tradition with a writing style that is both conversational and easy to read. Features designed to support learning include highlighted key cases, introductory chapter overviews, and end-of-chapter aides-memoire and recommended further reading. Public International Law is unique in that it is both a textbook and a casebook. The facts of each case and the details of the court or tribunal's decision are succinctly set out, followed by detailed commentary from the author, and, where appropriate, a brief explanation of subsequent events. The book covers all the major areas of public international law, and takes account of new developments relating to the codification of international law by the International Law Commission, State practice, and decisions of international courts and tribunals, in particular those of the International Court of Justice. Features new to this edition: A new dedicated chapter on the law of the sea Diagrammatic aides-memoire at the end of each chapter Expanded coverage of the US approach to international law via its courts and executive. This book is an ideal learning tool for students of law or political science and provides a clear and straight-forward overview for anyone with an interest in the subject. Alina Kaczorowska-Ireland is Professor of International and EU Law at the University of the West Indies, Cave Hill Campus, Barbados. She is also author of the Routledge textbook, EU Law.