He was a Visiting Fellow at the National University of Singapore, a visiting scholar in the International Media, Advocacy and Communications specialization in the School of International and Public Affairs at Columbia University (New York, USA), a visiting professor of the Doctoral Programme in Media & Communication at the Universidad de Malaga (Spain) and has been invited as key note speaker in several universities around the world. He is author of several books and other publications regarding the relationship between journalism, media, poverty and development.