Born in Long Beach, California, Robert Irwin began his career as a painter in the 1950s, associated with the Ferus Gallery group in Los Angeles. He transitioned from traditional canvas work to increasingly minimalist explorations, eventually abandoning objects entirely to focus on the phenomenological experience of environments.

His signature practice involved site-conditioned interventions, where he utilized materials such as scrim, fluorescent lights, and translucent panels to transform the sensory qualities of a given space. These works emphasize the temporal and physical conditions of the site, challenging the viewer to engage with the act of seeing itself.

Irwin remained a central figure in contemporary art until his death in 2023, maintaining a long-standing influence on installation art and environmental design. His work is held in major institutional collections worldwide, reflecting his enduring impact on the development of perceptual art.