The fifth volume of the Journal of Badiou Studies, "Architheater," energized by the publication of Badiou's Rhapsodie pour le théâtre (2014), knits together distinguished approaches to artistic production engaging with the work of Alain Badiou: "Engaging" here means articulated positions that include, imply, or criticize the Badiouiesque corpus. The issue does not therefore seek to implement Badiou's philosophical insights in interpretations of art or of aesthetics, but rather to take Badiou's philosophy as a center of convergence-nexus of a plethora of philosophical positions that include artistic production as a central element of their structure. Thematically, the volume limits its discussion to "a two" of architecture and theater, thinking their overlapping, juxtaposition, and respective generative capacities.