The volume scrutinizes publics and infrastructures not separately but in their constitutive interrelations and resonances. The contributions, originating in a range of disciplinary perspectives, share a praxeological approach, discussing historical and current processes of mediated cooperation in infrastructuring and making public(s) by tracing different forms of the production, design, and historic trajectories of various publics and infrastructures.The content• Perspectives• Civic Culture• Public Transport• Science and AcademiaThe Target groups• Academics in the fields of science and technology studies, social sciences, media and communication studies, information technologies and history• practitioners in politics and administration, telecommunications, journalists and content providersThe editorsMatthias Korn is a researcher in socio-informatics and post doc in the CRC 1187 Media of Cooperation, University of Siegen.Wolfgang Reißmann is a researcher in communication and media studies and post doc in the CRC 1187 Media of Cooperation, University of Siegen.Tobias Röhl is a researcher in sociology and post doc in the CRC 1187 Media of Cooperation, University of Siegen.David Sittler is a media and urban historian and was coordinator of the Research Lab Transformations of Life and Knowledge, University of Cologne.