 As a direct result of its examination of what may properly qualify as art, and of the markedly broad conception of what may constitute an art object resulting from this examination, conceptual art tends to reject traditional artistic media such as conventional painting or sculpture. Instead, it has found itself drawn to alternative means of expression, including performances, photography, films, videos, events, bodies, new ready-mades and new mixed media. In a nutshell, nothing can be ruled out in principle for use as possible artistic media, as can be seen, for example, in Richard Long’s photograph of a line made in the grass by  walking[2],  Bruce Nauman’s nine minute film of the artist himself playing one note on a violin whilst walking around in his  studio[3],  Janine Antoni’s use of chocolate and soap, Marina Abramovic’s display of an array of everyday objects, including knives, torches and feathers, which the audience is invited to apply directly on to the artist’s body, and Piero Manzoni’s act of signing a woman’s  arm[4].