Professor Emeritus of Sociology and of City and Regional Planning of the University of California at Berkeley and Professor of Sociology and Director of the Internet Interdisciplinary Institute (IN3) in the Universitat Oberta de Catalunya. Manuel Castells’ work has emphasized the important role of social movements and new technologies in the transformation of the city. He has documented urban transformations, recognizing the important role that culture plays in these processes. He has promoted a more decisive role of cities and local governments in a globalization created by and for the people and social movements. He has systematically advocated a new model of sustainable society which includes diversity, locality and creativity as basic elements. He has promoted the concept of “project identity” to describe the collective action needed to guide the future of all societies.