The Dialectionary is a handy little compendium of ideas and projects by Cluster, a network of eight contemporary visual arts organizations located in the residential peripheries of European cities (and one in Israel) who are focused on commissioning, producing and presenting experimental process-driven contemporary art. The artists’ entries are organized alphabetically by keywords such as Alliances, Chaos, Empathy, Energy, Noise, Network, Stranger, Sustainability, Thing and Time, among many others. Compiled from a series of meetings over two years, Dialectionary positions the work of these visual arts organizations in relation to wider sociopolitical and cultural concerns. Cluster members include: CAC Brétigny, Brétigny-sur-Orge; Casco—Office for Art, Design and Theory, Utrecht; CA2M Centro de Arte Dos de Mayo, Móstoles, Madrid; The Israeli Center for Digital Art, Holon; Les Laboratoires d’Aubervilliers, Paris; P74 Center and Gallery, Ljubljana; The Showroom, London; and Tensta konsthall, Stockholm.