In his photographs of the corner of a room that is characterised at least as much by the absence of people, objects, and spatial features as by the distinctiveness of its design, Hannes Meyer gave expression to a radical, anti-bourgeois style of interior. Architecture and design were not meant to fulfil historically determined needs but to overcome these very constraints. Meyer’s Co-op Interieur was not a recommendation for a mode of interior design but rather a manifesto proclaiming an alternative principle of housing and living and, by extension, a new world. The Haus der Kulturen der Welt (Berlin) project Wohnungsfrage investigates the fraught relationship between architecture, housing, and social reality in an exhibition of experimental housing models, an international academy, and a publication series that examines various options for self-determined, social and affordable housing. This publication series presents key historical works accompanied by new commentaries, contemporary case studies from around the world, and publications by activists concerned with urban policy issues, architects, and artists.