John Agnew is Distinguished Professor of Geography at the University of California, Los Angeles. He has taught at a number of universities including Syracuse University, the University of Chicago, and the University of Siena. He has authored or co-authored numerous books including Berlusconi's Italy: Mapping Contemporary Italian Politics (2008) and Globalization and Sovereignty (2009). He is co-editor of the Wiley Blackwell Companion to Human Geography (2011). Virginie Mamadouh is Associate Professor of Political and Cultural Geography at the University of Amsterdam and an editor of the international academic journal Geopolitics. Her research interests are in European geopolitics, new media and multilingualism. She is co-editor of The Theory and Practice of Institutional Transplantation (with Martin de Jong and Kostas Lalenis, 2002), Critical Essays in Human Geography (with J. Agnew, 2008), and Urban Europe: Fifty tales of the city (with A. van Wageningen, 2016). Anna J. Secor is Professor of Geography at the University of Kentucky and the Hajja Razia Sharif Sheikh Professor of Islamic Studies. Her research focuses on theories of space, politics, and subjectivity. Recently she has developed ideas of topology in geography by engaging the work of Lacan, Deleuze, and Agamben. Her research on Islam, state, and society in Turkey has been funded by the National Science Foundation. Joanne Sharp is Professor of Geography at the University of Glasgow. Her research interests are in feminist, postcolonial, cultural and political geographies. She is the author of Geographies of Postcolonialism: Spaces of Power and Representation (2009) and editor of The Ashgate Research Companion to Critical Geopolitics (with Klaus Dodds and Merje Kuus, 2013).