The British Thematic Association is a national body set up in 1984 to cater for the needs of thematic stamp collectors. It offers a range of services including a quarterly magazine, a large library of books and journal articles, and it arranges regular meetings and seminars.

It is affiliated to the American Topical Association. By arrangement with the ATA it offers their publications at special rates.

Official website: http://www.brit-thematic-assoc.com/index.htm