How to Look at and Understand Great Art Lectures Episode 13 Sculpture—Salt Cellars to Monuments ( Air Date 2011-01-01 ) Genre Documentary category. Overview "Sculpture, as a genre, encompasses the full spectrum of three-dimensional artworks. In this lecture, investigate the varieties and viewing contexts of relief and in-the-round sculptures—from monumental public works and religious and historical subjects to assemblage, collage, found objects, and large-scale "earth art"—noting the technical distinction between subtractive and additive work.".