The World Factbook is a reference resource produced by the Central Intelligence Agency

Central Intelligence Agency

The Central Intelligence Agency is a civilian intelligence agency of the United States government. It is an executive agency and reports directly to the Director of National Intelligence, responsible for providing national security intelligence assessment to senior United States policymakers...

 of the United States with almanac

Almanac

An almanac is an annual publication that includes information such as weather forecasts, farmers' planting dates, and tide tables, containing tabular information in a particular field or fields often arranged according to the calendar etc...

-style information about the countries of the world. The official paper copy version is available from the National Technical Information Service and the Government Printing Office. Other companies—such as Skyhorse Publishing

Skyhorse Publishing

Skyhorse Publishing, Inc., known as Skyhorse Publishing, was founded in 2006 and is located in New York, NY. It is an American independent book publishing company, and is distributed by W. W. Norton & Company. The current president and publisher is founder Tony Lyons, who named it after Brando...

—also print a paper edition. The Factbook is available in the form of a website, which is partially updated every week.