Rousiley C.M. Maia is Professor of Political Communication at the Federal University of Minas Gerais.Gabriella Hauber was a postdoctoral researcher at the Federal University of Minas Gerais when this book was written. She is currently Assistant Professor of Communication at the Federal Technological University of CuritibaTariq Choucair was a doctoral student at the Federal University of Minas Gerais when this book was written. He is currently a Postdoctoral Fellow at the Digital Media Research Center at the Queensland University of Technology.