Michel Foucault’s writing is stratified, hierarchical, between books, interviews and courses at the College of France, but they are mainly spread in their uses. Now, and in addition to the history of science and philosophy, the ‘effects’ Foucault are palpable on literature and cinema theory, cultural and social history, gender theories, political thinking, management sciences... It is on this open site that this work is located. For Jérôme Lamy, Jean-François Bert and their team of specialists, Jérôme Lamy and their team of specialists were asked about thinking using questions from other fields, from psychology to economics, from political science to geography, while not relying on these humanities and social sciences. In order to understand the position of eddy, the main lines of methodology that he has travelled have been traced, such as archaeology, epistemè and problematics. The concepts, from now classic books to the classes and history of sexuality, are also being revisited. This critical reading of Foucault’s writing and usage makes it possible to compare it with the most recent analyses in social sciences, such as post-colonial studies, or to follow dialogues initiated (sometimes remotely) with authors such as Norbert Elias, Michel de Certeau and Pierre Bourdieu.