Sarah Dellmann is a media historian with an expertise in visual media of the 19th and early 20th centuries, mostly in Europe. She especially works on the magic lantern and early cinema, integrating archival, ethical, epistemological and intermedial perspectives as well as digital methods. After her PhD defense in 2015, Dellmann worked as researcher and coordinator in the research project A Million Pictures: Magic Lantern Slide Heritage as Artefacts in the Common European History of Learning (2015–2018) and was chief organiser of the projects international conference. She is editor at Early Popular Visual Culture and author of Images of Dutchness: Popular Visual Culture, Early Cinema, and the Emergence of a National Clich, 1800–1914. Frank Kessler holds the chair of Media History at Utrecht University and is a former president of Domitor, the international association of research on early cinema.