Today the architecture museum is one of the most significant instruments in architecture’s disciplinary apparatus. By collecting archives, producing exhibitions, funding publications, organising discussions, and commissioning work, these museums continue to further discourse and practice in the field. Unlike many other museums, architecture museums do not merely shape the context for the appreciation of their subject, but aspire to be instrumental in its progress. In order to reflect on the often unacknowledged agency of these museums, this issue considers the changing context through contributions by Ömer Kanipak, Triin Ojari, Pedro Gadanho, Bernard Colenbrander, and more.