Javier Callejo Gallego is Professor of Sociology, UNED and a Bachelor’s degrees in Sociology, Journalism and Law, all from the Complutense University. Working as a sociologist for thirty years. He is currently a lecturer at the UNED and at various Master’s and Doctorate courses. Previously, he has been a social researcher of consumption and audiences, in various institutes and as a freelance, specializing in trend analysis. He has directed the Research Department of the Centro de Investigaciones Sociológicas. Author of more than a hundred scientific articles and a dozen books.