Saskia Sassen is the Lynd Professor of Sociology and Co-Chair, The Committee on Global Thought, Columbia University. Her new books are Territory, Authority, Rights: From Medieval to Global Assemblages (Princeton University Press 2008) and A Sociology of Globalization (W.W.Norton 2007). Other recent books are the 3rd. fully updated Cities in a World Economy (Sage 2006) and the edited Deciphering the Global (Routledge 2007). She has completed for UNESCO a five-year project on sustainable human settlement with a network of researchers and activists in over 30 countries; it is published as one of the volumes of the Encyclopedia of Life Support Systems (Oxford, UK: EOLSS Publishers). Her books are translated into twenty one languages. She has written for The Guardian, The New York Times, Le Monde Diplomatique, the International Herald Tribune, Newsweek International, the Financial Times, among others.