John Agnew is Distinguished Professor of Geography at UCLA. His research focuses on sovereignty and globalization, place and politics and the geopolitics of the world economy. He is co-editor of A Companion to Political Geography (Wiley, 2007) and the Sage Handbook of Geographical Knowledge (co-edited with David Livingstone, 2012) as well as author of Hegemony: The New Shape of Global Power (2005) and Globalization and Sovereignty (2009).

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 interestsare in European geopolitics, new media and multilingualism. She is co-editor ofThe Theory and Practice of Institutional Transplantation (withMartin de Jong and Kostas Lalenis, 2002) and Critical Essays in Human Geography (with J. Agnew, 2008).

Anna J. Secor is Professor of Geography at the University of Kentucky. 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).