Frederick Kiesler (1890-1965) was an Austrian-born American artist, architect, set designer, and sculptor best known for his exhibition installations and visionary architectural projects, including an experimental model of human habitation titled The Endless House. Spyros Papapetros is Associate Professor of Art and Architectural Theory and Historiography at Princeton University. His many publications include On the Animation of the Inorganic- Art, Architecture, and the Extension of Life and the edited volume Retracing the Expanded Field- Encounters between Art and Architecture (MIT Press, 2014). Gerd Zillner is Director of the Frederick and Lillian Kiesler Private Foundation, Vienna. He has curated numerous exhibitions on Kiesler and coedited the volumes Frederick Kiesler- Face to Face with the Avant-Garde and Friedrich Kiesler- Architekt, K nstler, Vision r.