While the pop art movement and the appropriationist movement essentially concerned the iconography of popular media, like newspapers to TV commercials, Kelley Walker is interested in the media system as a whole. His work frequently questions the notions of author and audience, originality and authenticity, reproduction and the circulation of images. The artist plays with the usual distribution system of the work of art.  The image contained therein can indeed be reproduced endlessly and printed in various formats according to wishes of the buyer, as exemplified in the work Shema (2003). Demonstrating that there is more ways than one to escape the rehearsal process, Untitled (2003) is a steel plate of the recycling logo superimposed over an image. For Walker, it is no longer necessary to appropriate ideas, objects, images but to recycle them: the perpetual recycling of codes and systems inherent in advertising. But also of history, politics, and art in the United States. Kelley Walker was born in 1969 in Columbus, Georgia. He lives and works in New York.