Infobase Publishing announced today that it has acquired the World Almanac® imprint from The Reader’s Digest Association, Inc. Terms of the transaction were not disclosed.

World Almanac®’s long and storied history as a publisher of award-winning reference titles dates back to 1868. Most notably, The World Almanac® and Book of Facts has become the best-selling American reference book of all time with more than 80 million copies sold. The imprint also includes such popular and best-selling titles as The World Almanac® for Kids and The World Almanac® Book of Records.

“There are few names in reference publishing as well-known as the World Almanac®,” said Mark McDonnell, president of Infobase Publishing, “so when we had the opportunity to add it to our existing family of imprints, we moved quickly. The World Almanac® has been and will continue to be a powerful name in reference publishing, and we are excited about bringing it forward as an online resource as well.”