Saskia Sassen is the Robert S. Lynd Professor of Sociology and Co-Chair of the Committee on Global Thought at Columbia University. She is the author of several books, which have been translated into over 20 languages. Her most recent book is Expulsions: Brutality and Complexity in the Global Economy (Harvard University Press, 2014). She has received multiple doctor honoris causa and the 2013 Principe de Asturias Prize for the Social Sciences. She was chosen as one of the Top 50 Global Thinkers by Prospect Magazine (2014), Top 100 Thought Leaders by GDI-MIT (2012) and Top 100 Global Thinkers by Foreign Policy (2011).