Robert Irwin was born on September 12, 1928 in Long Beach, California, USA. He was a writer, known for
A Few Things About Robert Irwin (2017),
Robert Irwin: A Desert of Pure Feeling (2022) and
American Art in the 1960s (1972). He was married to Nancy Olsburg and Adele Feinstein. He died on October 25, 2023 in La Jolla, San Diego, California, USA.