How to Look at and Understand Great Art Lectures Episode 30 Postimpressionism—Form and Content Re-Viewed ( Air Date 2011-01-01 ) Genre Documentary category. Overview "The term "Postimpressionism" comprises a varied and highly innovative body of art. Here, learn how Postimpressionist painters such as Cézanne and Seurat were driven by what they perceived as a loss of form in Impressionist art. See also how Symbolists Gauguin and Munch used increasing abstraction to convey deeper psychological meanings.".