Brownlie's principles of public international law

Brownlie's Principles of Public International Law has been shaping the study and application of international law for over 50 years. Serving as a single-volume introduction to the field as a whole, the book is one of the classic treatises on international law, now fully updated to order to
take account of recent developments. It includes extensive references in order to provide a solid foundation for further research.
Authored by James Crawford, the ninth edition further secures the work as the essential international law text for students and practitioners.
Serving as a single-volume introduction to the field as a whole, Brownlie’s Principles of Public International Law seeks to present international law as a system that is based on, and helps structure, relations among states and other entities at the international level. It aims to identify the constituent elements of that system in a clear way. This ninth edition has been completely updated to take account of the many developments in international law that have occurred since the 8th edition (2012).