Edward W. Soja is a professor at the University of California and the London School of Economics. His work has been mainly aimed at recognizing the radical novelty of the ways of living and experiencing space in large contemporary cities. These changes require, in his opinion, an equally radical revision of the geographic tools and concepts that end up giving a new centrality to the «spatial dimension» in the framework of social studies. E. Soja is also the most relevant figure of what has been called the Los Angeles School of Critical Urban Studies. His main works are Postmodern Geographies (1989) and Thirdspace (1996), a trilogy completed with this volume.