- Maria F. Porges
(b Rock Springs, WY, Dec 23, 1942).
American sculptor and video artist. Kos was one of the leading figures of Bay Area conceptual art. He studied at the San Francisco Art Institute (SFAI), where he received a BFA in 1965 and an MFA in 1967. He remained in the Bay Area for the rest of his career, though for many summers he returned to Wyoming, his place of birth, using the long road trip as an opportunity to conceive of and make new work. Although both his degrees were in painting, Kos was one of the first artists in Northern California to make performance-based film and video, and described himself as a materials-based conceptualist. In the summer of 1968, he experienced an artistic breakthrough while working at the vineyard of Rene di Rosa (1919–2010), an important collector of northern California art and patron of many young artists. What resulted was Kos’s ephemeral outdoor installation of a tower of salt blocks titled ...