The websites below were written by experts in the field and are authoritative sources.
Be cautious when using any websites besides these.
Covers all aspects of culture and social life (economy, history and cultural relations, family and kinship, sociopolitical organization, and religion).
The World Factbook provides information on the history, people and society, government, economy, energy, geography, communications, transportation, military, and transnational issues for 267 world entities.
Use these reference books to find introductions to various countries.