Johannes Preiser-Kapeller is team leader of the research group “Byzantium & Beyond” at the Department for Byzantine Research/Institute for Medieval Research of the Austrian Academy of Sciences and Lecturer for Byzantine and Global History at the University of Vienna. His research focuses on the history of Byzantium and the medieval Mediterranean in global comparison and connectivity, environmental and climate history and historical network and complexity research. He has used tools and concepts of network analysis for the study of Byzantium and Late Antiquity for 15 years (see here) and has taught introductory courses on the topic in 10 different countries. He is a member of the advisory board of the Journal of Historical Network Research and coordinator of the special thematic strand on “Networks and Entanglements” for the International Medieval Congress Leeds 2023.