Klaus Spechtenhauser is an art historian and Slavist. Since 2002 he has been a research associate at the ETH Wohnforum/Center for Cultural Studies in Architecture. From 2002 to 2007 he was an assistant professor under Prof. Arthur Ruegg in the Architecture Department at the Eidgenossische Technische Hochschule (ETH, Swiss Federal Institute of Technology) in Zurich. Journalistic activities on the architectural and cultural history of the twentieth century. Michelle Corrodi was an assistant professor under Prof. Herbert Kramel from 2000 to 2001. Since 2002 she has been a research associate at the ETH Wohnforum/Center for Cultural Studies in Architecture in the Architecture Department at the Eidgenossische Technische Hochschule (ETH, Swiss Federal Institute of Technology) in Zurich. Since 2005 she has been a copywriter for the architectural firm of Baumschlager & Eberle. Her primary focuses are architectural and cultural history and housing construction. Gerhard Auer has been a practicing architect and urban designer since 1967. Since 1980 he has been a professor of design at the Technische Universitat Braunschweig (Braunschweig Technical University). He is active as a researcher and expert consultant in Germany and abroad. He is the author of numerous publications on architectural theory and co-editor of the journal Daidalos. Since the 1980s he has focused on light-related subjects. He produces works of light art in public spaces and curates light art exhibitions.