Diana Lange, Ph.D. (2008), Humboldt-Universität zu Berlin, is Professor of Central Asian Studies at that university. Her research is focused on the history of knowledge and exploration, material and visual culture studies, cartography, and cultural interactions. Benjamin van der Linde, Ph.D. (2014), Universität Kiel, is a historian at the Emsländischer Heimatbund, Meppen. His research interests cover historical cartography, material culture and military history of the Early Modern period, with a focus on the Netherlands and North Germany.