After finishing his undergraduate studies Mattelart joined a community of secular monks in Brittany for one year, but went on to study Law and Political Science at the Catholic University of Louvain. Afterwards he studied demography at the Institute of Demographic Studies in Paris (founded by the influential left intellectual Alfred Sauvy -- who in 1952 coined the term Third World). Upon finishing his studies he is appointed as an expert on the politics of population by the Vatican, and in 1962 is sent to the Universidad Católica de Chile. While in Chile he married Michèle Mattelart.
While in Chile Mattelart was appointed to confront from a catholic spiritual perspective the strategic models for family planning which were at the time being pushed by the Ford and Rockefeller Foundations and the Alianza para el Progreso (Alliance for Progress -- a US official aid program). The US family planning model aimed to limit the natality to "improve the lives of the inhabitants of the continent" and of course in conflict with the Catholic teachings. The revolutionary transformations in Latin America post-1960 require that the Church enter the ideological fray and develop communication strategies applied to "ideological, political and social struggles" to create ideological and political alternatives to atheist communism or the "protestant North American imperialism".
While always based at the Catholic Univ. of Chile, Mattelart underwent a transformation in his thoughts and beliefs. He initiated a collaboration with the Centro de Estudios de la Realidad Nacional (CEREN) (Center for the Study of the National Reality), founded in 1968 under the auspices of the Catholic Univ. Jacques Chonchol was CEREN's director (also an important ideolog with MAPU -- a left offshoot of the Christian Democrats which was also part of the Unidad Popular government). CEREN's first research conducted by Armando Mattelart, Michèle Mattelart, Mabel Paccini, et al., had to do with an structural left analysis of the liberal press, the "celebrity" publications, the pseudo-amorous magazines. Mattelart primarily studied El Mercurio, the principal liberal newspaper. This was the starting-point of his life-long involvement with the history of communications.
The Cuadernos de la Realidad Nacional (Notebooks of the National Reality), CEREN's publication, became the principal ideological generators and emiters during the social democratic government of Salvador Allende (1970 - 1973). The journal was similar to the French post-structuralist model, and it was primarily aimed to analyze the political economy of the mass media. Under this rubric, Mattelart and Ariel Dorfman published in 1971 the famous pamphlet: Para leer al Pato Donald, manual de descolonización antinorteamericana (How to read "Donald Duck", a manual for American de-colonization), where they provided an structural analysis (supposedly Marxist) where they denounce the "yankee media penetration" via Disney comics. The book analyzed the celebrated family of ducks and presented them as nasty agents of the North American cultural imperialism. This book was banned in the United States lending it great publicity and it became one of the best-selling books in Latin America during the 1970s.
After the Chilean coup of 1973, Mattelart returned to France where (at age 37) he had to restart his academic career -- he became a visiting scholar at the University of Paris VIII Saint-Denis. He later became a full professor of Science of Information and Communication -- a topic on which he later became a theoretician. In 1974, he worked on La Espiral, a film justifying the Chilean route to socialism. Between 1983 and 1997 he has been Professor of Information and Communication Sciences at the University of Rennes 2 – Upper Brittany, and in the postgraduate program at Paris III (Nouvelle Sorbonne) -Rennes 2. Between 1997-2004, he has been Professor at the Université of Paris VIII. Since September 2004, he is Pr