Lagarrigue taught history of communism at the Institut d'Etudes Politiques de Paris and has published numerous papers including in the magazine Communism published by the Study Group and Democracy Observatory of the National Center for Scientific Research and a book on the charismatic leader of French rural communism Renaud Jean entitled Notebooks a Communist deputy. Working alongside the history of the Second World War, it was also interested in the Exodus and the history of refugees in 1940. Organizer of an international symposium on this subject, he led a reference book titled 1940, The decline of France. The European defeat. These investigations have also led to writing and directing a documentary and a book about the exodus of the Belgians in the Southwest of France. He also organized an international symposium titled Manuel Azana and memory of the Spanish Civil Warin November 2004 Montauban) working to preserve the memory of President of the Spanish Republic, Manual Azaña, a refugee who was buried in Montauban in November 1940. He co-founded in 2005, with actor and director François-Henri Soulié, the association which was established to hold an annual celebration on the date of death of the President of the Spanish Republic. Wishing to promote regional contemporary history, he co-founded an association called Montauban Arkheia - History, memory of the twentieth century in South-West, which publishes a magazine of the same name. This review brings together a group of historians, academics, journalists, local scholars, teachers and students. He is also since 2001 a journalist by involving local prior to professionalize in 2006, within the regional daily La Dépêche du Midi.
Articles
Historical
"La France du repli, 1940 : refuge et solidarité", Migrance, hors-série sous la direction de Max Lagarrigue, Paris, 2000.
, Montauban, Arkheia, 2000.
"Itinéraire d’un cadre en marge : Renaud Jean, 1939-1941", Communisme, Paris, Éditions de L'Âge d’Homme, 1999.
"Un communisme rural ? L’exemple lot-et-garonnais durant les années trente", Éditions les Amis du Vieux Nérac, Toulouse, 1998.
"", Communisme, Paris, L'Age d’Homme, 1998.
"Le PCF de la France rurale des années trente à la Guerre froide : l’exemple du Sud-ouest", Revue des Archives en Limousin, n° 12, Brive, 1998.
"La Confédération paysanne des Paysans Travailleurs. Émergences, actions et difficultés d’une syndicalisme de 'classe' dans les années trente", Le Festin, n° 25, Bordeaux, 1998.
