Sol LeWitt was an iconic American artist whose work helped to establish both Minimalism and Conceptual Art. LeWitt’s practice was based primarily within his own intellect, establishing a rubric of formal instructions which his assistants followed to create the works. Some of the artist’s most integral pieces are his Wall Drawings, in which he explored myriad variations of applying drawn lines onto walls. “When an artist uses a conceptual form of art, it means that all of the planning and decisions are made beforehand and the execution is a perfunctory affair. The idea becomes a machine that makes the art,” he wrote in his seminal 1967 essay Paragraphs on Conceptual Art. Born Solomon LeWitt on September 9, 1928 in Hartford...