Now updated to include cases from a greater range of domestic jurisdicutions, a new chapter on criticism, themes, and issues, and an account of the completed work of the International Law Commission Looks at one of the most salient topics of international law, how it is applied and interpreted in international and domestic institutions, filling an important gap in the literature Close analysis of the rules of Treaty interpretation from the Vienna Convention on the Law of Treaties, and illustrated with practical case examples and state practice Covers both national and international decisions Analyses the general history, background, and development of the current rules of treaty interpretation.