Craig-Martin has set up an engaging dialogue both between his own work and the modern masters who preceded him but also, following in Duchamp's footsteps, between objects traditionally conceived of as art and those that are not. Craig-Martin: 'I came to feel that the objects around us, particularly the ones that we value the least because http://www.sothebys.com/en/auctions/ecatalogue/2010/the-robert-devereux-collection-of-post-war-british-art-in-aid-of-the-african-arts-trust-sale-1-l10143/lot.4