Yvonne Zimmermann is Professor of Media Studies at Philipps-University Marburg, Germany. She is editor and co-author of a volume on ‘useful cinema’ in Switzerland (Schaufenster Schweiz: Dokumentarische Gebrauchsfilme 1896–1964, 2011) and co-author of Adverising and the Transformation of Screen Cultures (with Bo Florin and Patrick Vonderau, 2021). She has published widely on industrial film, ‘useful cinema’ and nontheatrical film culture.