Keith Sonnier
Keith Sonnier (United States, 1941–2020) was a postminimalist sculptor and performance artist renowned for his innovative use of neon and light in sculpture. A pioneer in the Process Art movement, he explored unconventional materials to challenge traditional art forms. Sonnier's works are featured in major collections, including the Museum of Modern Art and the Whitney Museum of American Art.

What is minimalism?
Minimalism is a style in music and visual arts characterized by pared-down designs and simplicity. It began in Western art after World War II, gaining prominence particularly in American visual arts. Minimalism draws heavily on aspects of modernism and is often viewed as a reaction against Abstract Expressionism, as well as a precursor to post-minimal art practices. Prominent minimalist artists include Agnes Martin, Donald Judd, Robert Morris, Frank Stella, and Dan Flavin.