Hubert Knoblauch is Professor for General Sociology/Theories of Modern Society at the Technische Universität Berlin and Co-Chair of the Collaborative Research Center (CRC 1265) “Re-Figuration of Spaces” with Martina Löw. His main research areas include Sociological Theory, Sociology of Knowledge, Religion, Language, Qualitative Methods, Videography. He recently published the monograph The Communicative Construction of Reality (2020). Dr. Vivien Sommer is a sociologist researching knowledge, practices, and memory with a focus on European borders. Since 2023, she leads the Emmy Noether Junior Research Group on socio-spatial memory at the Leibniz Institute for Research on Society and Space and is part of the Collaborative Research Center (CRC 1265) “Re-Figuration of Spaces” at Technische Universität Berlin. Her work focuses on empirically grounded theory development in the fields of Sociology of Knowledge and Space, as well as the development of innovative qualitative methods. Barbara Pfetsch is Professor of Communication Theory and Media Effects research at Freie Universität Berlin and a principal investigator at the Weizenbaum Institute for the Networked Society. Her research and publications focus on comparative political communication, online communication and digital issue networks, and transnational and European public spheres.