Christian Borch is Associate Professor at the Department of Management, Politics and Philosophy, Copenhagen Business School, Denmark. His PhD was on the history of modern crime semantics where he studied how notions of crime and criminals evolved in the twentieth century and what responses were launched to deal with crime. In his more recent research Borch has focused on crowds, architecture and urban theory. He has published widely on these issues as well as on key social theorists such as Gabriel Tarde, Niklas Luhmann and Peter Sloterdijk. He is co-founder and editor-in-chief of Distinktion: Scandinavian Journal of Social Theory.