Professor Roberto de Mattei teaches History of Christianity and of the Church at the European University in Rome, where he is also Coordinator of the Degree Course in Historical Sciences.

He is President of the Lepanto Foundation (Rome - Washington), and vice-President of the National Research Council of Italy where he has been vice - commissioner (2003) and vice-President (2004-2007) with delegation for Human Sciences; he is a member of the Board of Guarantors of the “Italian Academy” (Columbia University, New York) and the Board of Directors of the “Italian Historical Institute for the Modern and Contemporary Age”; he is a member of the Board of Directors of the "Italian Geographic Society".

From February 2002 to May 2006 he was Advisor to the Italian Government on International Affairs. He is the author of numerous books and publications which have been translated into a variety of languages as well as a regular contributor to many Italian and foreign reviews and newspapers alike.

Among his more recent books, there are: Turkey in Europe: Benefit or Catastrophe? (Gracewing, 2009), La liturgia della Chiesa nell'epoca della secolarizzazione (Edizioni Solfanelli, 2009), Pius IX (London, 2004), Der Kreuzritter des 20 Jahrhunderts: Plinius Corrêa de Oliveira(Wien, 2004), L’ identità culturale come progetto di ricerca (Rome, 2004); La Biblioteca delle Amicizie Repertorio critico della cultura cattolica nell’epoca della Restaurazione (Naples, 2005); De Europa. Tra radici cristiane e sogni postmoderni (Florence, 2006); Holy War Just War, Rockford, Illinois 2007. He is editor-in-chief of the three monthly historical review “Nova Historica”, of the monthly review “Radici Cristiane” and of the weekly publication “Corrispondenza romana”.