Richard Serra is an American sculptor known for his large-scale, site-specific installations made from steel. Born on November 2, 1939, in San Francisco, California, he studied at the University of California, Berkeley and the Yale School of Art. Serra's work often explores the relationship between the viewer and the surrounding space, emphasizing the physical experience of walking through his sculptures. His most famous works include Tilted Arc, a controversial installation in New York City, and The Matter of Time, located at the Guggenheim Museum in Bilbao, Spain. Serra's art is characterized by its monumental size and industrial materials, challenging traditional notions of sculpture and space.