Phd in Communication Sciences (2013) from the Faculty of Arts and Letters of the University of Beira Interior, Portugal, with the rating of excellent by unanimity and mention of European Doctor. Degree in Communication Sciences from University of Beira Interior with the final classification of Very Good.

He conducted post-doctoral research at the Faculty of Communication at the University of Brasilia, with a scholarship from Brazilian Government (PNPD-CAPES/2013), between May 2014 and December 2015, and doctoral internship at the Autonomous University of Barcelona, with a scholarship from the Foundation for Science and Technology (2008-2011).

Currently, it is Post-Doctoral Fellow at the Foundation for Science and Technology (FCT), developing research in the Communication, Philosophy and Humanities Center (LabCom.Ifp), from University of Beira Interior.

In 2016, he was a Visiting Professor at the Masters Degree in Political Science from the University of Beira Interior and, since 2018, is a professor in the Department of Communication Sciences of the Autonomous University of Lisbon.

It is member of the Executive Board of the Asociación Latinoamericana de Investigadores en Campañas Electorales (ALICE) since 2012 and a member of the editorial board of the scientific journals: Rhêtorikê" (LabCom - UBI), Más Poder Local" (Fundación Ortega y Gasset - Madrid") and Communication Studies (LabCom).

Hélder Prior published the books: Esfera Pública e Escândalo Politico (Media XXI); Diálogos Lusófonos em Comunicação e Política (2016), LabCom Books and (Des)construindo uma queda: a mídia e o impeachment de Dilma Rousseff (2018), Insular.