Drafted by an international team of specialists chosen by the Curatorium of The Hague Academy of International Law, this bilingual work presents detailed analysis of the law of international organizations, in the context of the political, ideological, economic and technological environment in which they were set up and have evolved. After dealing with the formal and organic machinery, the book goes on to examine activities of international organizations - not only normative, executive and judicial functions, but also intervention domains in international economic, technological, social and cultural life.