Founder of the journal Études Photographiques, he is also the editor, together with Michel Poivert, of the volume L’Art de la photographie des origines à nos jours (Citadelles/Mazenod, 2007). His current research focuses on the new practices surrounding the use of digital images and on the visual forms of popular culture. This article was written in the context of the ANR project ‘Les artistes en régime numérique.’