He began as a teacher at the Lycée Pothier in
Orléans, before becoming an assistant, then assistant professor at the Sorbonne. Between 1969 and 1979, Prost held a Professorship at the
University of Orleans, then at the university of
Paris-I Panthéon-Sorbonne (1979-1998). He also led the history Research Center of the social movements and trade unionism, later the Centre of Social History of the 20th Century. He is president of the association
Le Mouvement social (which publishes the magazine of the same name) and of the Association des Amis du Maitron (2005-2012). He is a member of the board of directors of the University of Orléans. Since 2012 he has been a member of the Committee for Prefectural History. Since 2012 he has chaired the Scientific Council of the Mission of the Centenary of the First World War. He also chairs the Scientific Council of the Verdun Memorial and the historical and educational committee of the Resistance Foundation. == Awards ==