“Throughout his career, Kos (b. 1942) has presented an expanded idea of sculpture and continues to employ diverse media and subject matter. He was among the first artists in Northern California to create performance-based film and video works as well as participatory installations. Kos, with his ephemeral outdoor installation at di Rosa, Lot’s Wife (1968–1969), experienced an artistic breakthrough on the property that would signal a major shift toward working with materials in relation to a site. He would soon thereafter become one of the leading figures of Bay Area Conceptual art.”