Jorge León Casero is Professor at the University of Zaragoza, Spain. He has been the head researcher of the Social Risk Map project. He is the author of several books, book chapters and articles. Julia Urabayen is Professor at the University of Navarra, Spain. In recent years, she has mainly studied public-urban space, forms of political violence, citizenship and the city, as well as governance and feminist utopias. She has published several books, book chapters and articles.