Robert Morris was an American sculptor, conceptual artist and writer. He was regarded as having been one of the most prominent theorists of Minimalism along with Donald Judd, but also made important contributions to the development of performance art, land art, the Process Art movement, and installation art. Morris lived and worked in New York. In 2013 as part of the October Files, MIT Press published a volume on Morris, examining his work and influence, edited by Julia Bryan-Wilson.

In visual arts, music and other media, minimalism is an art movement that began in post–World War II in Western art, most strongly with American visual arts in the 1960s and early 1970s. Prominent artists associated with minimalism include Donald Judd, Agnes Martin, Dan Flavin, Carl Andre, Robert Morris, Anne Truitt and Frank Stella. The movement is often interpreted as a reaction against abstract expressionism and modernism; it anticipated contemporary postminimal art practices, which extend or reflect on minimalism's original objectives.