Although art forgery is documented throughout the history of Western art, philosophical discussion of the problems of art forgery is a relatively recent matter, beginning largely in the latter half of the twentieth century. Arising even more recently is the practice of creating ‘appropriation art’, a topic that has so far been largely ignored in aesthetics but which raises some challenging questions especially when compared with forgery. This article introduces some of the philosophical problems that arise from the practice and (...) products of art forgery and in the contemporary movement of art appropriation. Rather than involving issues on the periphery of aesthetics, I suggest, forgery and appropriation art cut to the heart of issues in the ontology of art, the intersection of aesthetics and ethics, and other central areas in the philosophy of art. (shrink)