The World Almanac is a trusted reference book containing thousands of facts and statistics on topics including science, politics, economics, and nations of the world. It has been published annually since 1868 and is the #1 best-selling American reference book ever with over 82 million copies sold. The book provides quick answers to questions and is organized into categories and subcategories to allow for easy searching of information presented in various formats like lists, charts, maps and timelines. It is available in print and digitally and can be accessed at many libraries.