Spyros Papapetros is Associate Professor in the School of Architecture at Princeton University and the author of On the Animation of the Inorganic- Art, Architecture, and the Extension of Life and coeditor of Retracing the Expanded Field- Encounters between Art and Architecture (MIT Press). Frederick Kiesler (1890-1965) was an Austrian-American architect, theoretician, theatrical designer, artist, and sculptor. Gerd Zillner is Senior Archivist Researcher at the Frederick and Lillian Kiesler Private Foundation in Vienna. He has lectured and published on Frederick Kiesler and curated shows on Kiesler and contemporary art.