Gabriel Feltran is a professor at the Department of Sociology of UFSCar, São Carlos, SP, Brazil. Research Director of the Center for Metropolitan Studies (CEM), coordinates CEM’s subproject “The regulation of (il)legal markets: inequalities and violence”, he is also a researcher at the CEBRAP, invited scholar and visiting Professor at Humboldt University (Berlin - 2018), CIESAS (México - 2017), Sciences Po (Paris - 2013). He obtained his PhD in Social Sciences (2008) at the State University of Campinas (UNICAMP), with a collaborative period at the Ecole des Hautes Etudes en Sciences Sociales (EHESS). Currently researches criminal groups and illegal markets in Brazil, based on previous work on everyday social/political dynamics in urban outskirts, focusing on collective action, marginalized groups and "the criminal world" in Sao Paulo.