In this work of philosophy, Danto wishes to define art, and to show why contemporary art, having attained self-consciousness, is asking the same questions as philosophy. His approach throughout the book is to compare artworks with what he calls mere real things, when both are indiscernibly alike. The two classes of things, as he argues, belong to different ontological realms, hence, the title of his book. The artist performs a transfiguration of the commonplace when he makes of his materials a work of art. Danto has been criticized for his belief in duality, underlined by the Christian or Catholic figure of transfiguration, and reiterated throughout the book in his references to the body and the soul. I am not sure if the two ontological realms are as separate as his tropes imply, for his argument proceeds by making nice distinctions between, first, a representation and an object, and, then, between a representation and an artistic representation. If the categories are finally differen...