LeWitt, Sol, 1928-2007, American artist, b. Hartford, Conn. LeWitt, who came into prominence in the 1960s, termed his work conceptual art, emphasizing that the idea or concept that animates each work is its most important aspect. He is probably the artist most often linked with the conceptual art movement. Reflecting his study of mathematics, Lewitt reduced the contents of his art to the most basic shapes, colors, and lines, creating modular cubes and grid structures, geometric "wall drawings," and serial graphics. His work is represented in the Museum of Modern Art, New York City, and in other major American museums.