A Practitioner's Guide to Maritime Boundary Delimitation remains the definitive guide for anyone involved in maritime boundary-making and dispute resolution, whether from within law, technical practice, academia, government or related fields. Drawing on the combined perspectives and extensive experience of its authors, the book provides a unique blend of legal and technical insights into the principles, methods and best practices of maritime delimitation, with a particular emphasis on international jurisprudence since the landmark North Sea Continental Shelf cases (1969) and advent of the UN Convention on the Law of the Sea (1982). This thoroughly updated edition covers key developments since 2016, such as the changing role of islands and rocks in delimitation, developments in seabed delimitation beyond 200 miles from the coast, climate change impacts and the growing role of non-binding third-party dispute resolution procedures. The book analyses 29 modern maritime boundary delimitation cases (including six new cases decided since the previous edition) and assesses their ongoing relevance today. Richly illustrated with full-colour maps by a leading technical expert in international dispute resolution, the book brings complex legal and geographical issues vividly to life. Cited frequently before international courts and tribunals—including the International Court of Justice and the International Tribunal for the Law of the Sea—the first edition established itself as an essential resource. This new edition builds on this legacy, remaining an invaluable tool for practitioners, negotiators, litigators, and educators in maritime boundary law.