Most Books Published by an Individual in One Year

Roberto Keoseyan Fonticoba, professionally known by his pen name Dr. Robbie King, achieved the remarkable feat of publishing 66 books within a single calendar year, from January 1 to December 31, 2025. His works covered a diverse range of disciplines, including linguistics, engineering, art, history, science, theology, and other professional subjects. Through this extraordinary literary accomplishment, he significantly surpassed the previous record of three books published in a year. The achievement demonstrates exceptional productivity, scholarly dedication, and multidisciplinary expertise. The record was accomplished in Bay Harbor Islands, Florida, USA, and verified through comprehensive publication and authorship evidence.