An extensive and unequalled one-volume guide covering some 1,900 international and regional entities, this title provides detailed and accurate information on a wide spectrum of international organizations from the World Health Organization to OPEC. Features include: introductory articles: An Introduction to International Organizations and The International System in the Early Twenty-first Century a chronology charting the historical development of international organizations texts of significant international charters, treaties and documents lists of key UN Security Council and General Assembly resolutions, plus information about peace-keeping activities biographical details of leading officials within international organizations information on each organization includes contact details, membership, leading officials, activities, finance, publications and subsidiary organizations an extensive index.