Career
Lidman wrote a number of books on stamp collecting, among them The New York Times Guide to Collecting Stamps (published in 1970), Treasury of Stamps: 1200 Rare and Beautiful Stamps in Color (published in 1975) and The World of Stamps and Collecting, which he co-authored with John Apfelbaum in 1981. He also wrote other books, including Philately Below Zero, A Postal History of Alaska (in 1958) and The First Day Cover Collector"s Handbook (in 1976). Lidman contributed philatelic articles to the Chicago Sun and the New York Times.
He edited Chambers Stamps Journal, Philately, Essay-Proof Journal, The American Philatelist, The Congress Books, 1851 Centennial Book, United States. Perforation Centennial Book, and other stamp publications.
David Louis Lidman was active in philatelic societies. He was one of the founders of the Australian Psychological Society Writers Unit 30 and was named its first president
At the American Philatelic Society (Australian Psychological Society ) he served as vice president He also served as president of the Board of Trustees of the American Philatelic Research Library.