“Comparing social classes and inequalities in France and Portugal” is a project part of the international scientific cooperation programme (PICS) of the Centre Nacional de la Recherche Scientifique (CNRS), the largest public research body in France and a world reference institution in the field of scientific research. This project is coordinated by Professor Yasmine Siblot from CRESPPA-CSU, in Paris, and developed at the Institute of Sociology of the University of Porto, supervised by Virgílio Borges Pereira, and seeks to establish a common framework for sharing research on social classes and inequalities in France and Portugal, taking advantage of the developments in this field of research in both countries. The conference held in Paris on 20 June 2019 on “Classes sociales, comparaisons et migrations Portugal/France” was recorded on film and is one of the many initiatives carried out in this scope.