[1] His first cartoons were published in 1984 in Hara-Kiri and weekly news magazine L'événement du Jeudi, the daily Libération, 7 à Paris, La Grosse Bertha and Charlie Hebdo[2] (which he left in 1996 following the Patrick Font controversy).
Lefred works for the French irreverent political press, Le Canard Enchaîné, where he is one of the chief contributors with Pétillon and Cabu.
As a writer, Thouron collaborated with Yan Lindingre on Les carottes sont crues, a spoof on the "organic" craze.
He worked with Diego Aranega to produce Casiers Judiciaires , slices of life in a provincial courthouse, recently published as a collection by Dargaud.
Le Canard Enchaîné, L’Équipe Magazine, Fluide Glacial, La Décroissance, CQFD, Libération, etc.