The World Factbook

This reference is a source of important unclassified CIA data on every country, from Afghanistan to Zimbabwe.

Every country's area, climate, recent international disputes, natural resources, environment, population, inflation rate, GDP, agriculture, industries, defence expenditures, national holidays, literacy rate, religion, legal system and labour force are covered, and every entry includes a map.

Key data is grouped under geography, people, government, economy, communications and defence forces.

The book also contains appendixes on the United Nations system, international organizations, country membership in international organizations, wieghts and measures, and geographic names.