Robert Irwin (artist)
Robert Walter Irwin (September 12, 1928 – October 25, 2023) was an American installation artist who explored perception and the conditional in art, often through site-specific, architectural interventions that alter the physical, sensory and temporal experience of space. Irwin began his career as a painter in the 1950s, but in the 1960s shifted to installation work, becoming a pioneer whose work helped to define the aesthetics and conceptual issues of the West Coast Light and Space movement.