ABA – Antiquarian Booksellers Association
Founded in 1906 and the oldest organisation of its kind in the world, the Antiquarian Booksellers’ Association is the senior trade body for dealers in antiquarian and rare books, manuscripts and allied materials in the British Isles.


IMCOS – International Map Collectors’ Society
London-based organization for those interested in maps, including collectors, dealers, librarians, and academics.


IAMA – International Antiquarian Mapsellers Association
To promote the professional trade in antiquarian, collectible maps and related books. A necessary part of that process is to uphold and enhance the status of that antiquarian trade, promoting high professional and ethical business standards (see Code of Ethics).


ILAB – International League of Antiquarian Booksellers
Antiquarian booksellers affiliated to the League adhere to the ILAB Code of Ethics, and the League aims to server as a global network for the rare book trade.