Steve Davis has been a dedicated stamp collector for over 50 years. He is an expert on twentieth-century United States postal history and specializes in airmail usages and rates. He is an active exhibitor and philatelic writer and in addition to numerous published articles, he maintains his own blog and website on philately and postal history. He is a member of multiple philatelic groups including the American Air Mail Society, American Philatelic Society and American Association of Philatelic Exhibitors. Mr. Davis is a freelance writer who lives in Calgary, Alberta, Canada.