Origins, Imitation, Conventions: Representation in the Visual Arts - Paperbackby James S. Ackerman (Author) Twelve studies by eminent art historian James S. Ackerman. This collection contains studies written by art historian James Ackerman over the past decade. Whereas Ackerman's earlier work assumed a development of the arts as they responded to social, economic, political, and cultural change, his recent work reflects the poststructural critique of the presumption of progress that characterized Renaissance and modernist