This document discusses minimalist art and conceptual art from the 1960s-1970s. It features works by American artists such as Donald Judd, Sol LeWitt, Carl Andre, Richard Serra, Walter De Maria, Christo, and Joseph Kosuth. Minimalist art focuses on simple geometric forms and aims to reduce art to its most essential elements. Conceptual art emphasizes ideas over physical objects, using words and language in their works. Joseph Kosuth is cited saying that art has become philosophy made concrete. The works in the document illustrate the rejection of traditional artistic techniques in favor of minimal and conceptual forms of expression.