Saskia Sassen (The Hague, Netherlands – 1947) is Professor of Sociology and a member of the Committee on Global Thought at Columbia University. She is one of the world’s leading experts on urban studies and globalization; phenomena she has analyzed taking into account their economic, social, political and cultural implications. In 1991, she published The Global City: New York, London, Tokyo, a landmark book in which she developed the concept of “global city” as a means of explaining how planetary flows –of money, goods and/or cultural assets– come to be embedded and localized inside specific territories, going against the current of conceiving globalization as process consisting in deterritorializing efforts. Her most famous books include Guests and Aliens (1999), Territory. Authority. Rights. From Medieval to Global Assemblages (2006), Cities in a world economy (2011), and Expulsions: Brutality and Complexity in the Global Economy (2014). She is a regular collaborator in media outlets such as The Guardian, The New York Times, Le Monde or Newsweek International. In 2013, she received the Prince of Asturias Award in Social Sciences, and in 2018 she received the CLACSO Award.