James Turrell (b. 1943, Los Angeles) is an American artist renowned for his groundbreaking work within the Light and Space movement. Known as the "master of light," Turrell explores the relationship between light, space, and perception, transforming environments through installations that manipulate natural and artificial light. His most ambitious project, Roden Crater, is a massive naked-eye observatory under construction in Arizona, while his Skyspaces series frames the sky to create immersive experiences. Turrell's background in perceptual psychology and his Quaker upbringing have influenced his pursuit of transcendent and contemplative art. He has received numerous accolades, including a MacArthur Fellowship and the National Medal of Arts. Turrell's work has been exhibited globally, with major retrospectives at institutions like LACMA, the Guggenheim, and the Museum of Fine Arts, Houston.