Dr James Mackay was one of the foremost and most prolific authors on stamps and stamp collecting in the world. He wrote over 100 books and thousands of articles on the subject of stamps and other collectables such as coins, antiques and bronzes, and published Philatelic Terms Illustrated (Stanley Gibbons). He had one of the largest private collections of stamps and philatelic material in the world. James Mackay's published works include: Commemmorative Medals (A Barker); Collectables (Macdonald); The Banknote Yearbook (Token Publishing); and Dictionary of Turn of the Century Antiques (Ward Lock).