His first one-man exhibition was held at Marlborough Fine Art, London in 1963. He taught at the University of California Berkeley in 1967-8 and the University of California Los Angeles in 1970-1. In 1972 he returned to London. His 1983 marriage to the American artist Sandra Fisher (1947-94) is celebrated in his paintings Cecil Court, London WC2 (The Refugees) (Tate Gallery T04115) and The Wedding (Tate Gallery T06743).
In 1976 Kitaj selected for the Arts Council of Great Britain a group of British works, connected by a common theme, which formed the core of an exhibition called The Human Clay. The show included works by Bacon, Freud, Auerbach, Kossoff, Moore, Hodgkin, Hockney, Kitaj himself, and others. Kitaj's essay for the catalogue, in which he proposed the idea of a School of London, became one of the key art historical texts of the period. In 1989 he published the First Diasporist Manifesto, the longest and most impassioned of his many texts discussing the Jewish dimension in his art and thought.
His various honours include election to the American Academy of Arts and Letters in 1982. In 1985 he became the first American since Sargent to be elected to the Royal Academy. Numerous retrospective exhibitions of his work have been held, including shows at the Hirshhorn Museum, Washington, DC and tour 1981-2; and the Tate Gallery, Los Angeles County Museum of Art and Metropolitan Museum of Art, New York 1994-5. He moved to Los Angeles in 1997.
Marco Livingstone, Kitaj, 2nd (revised and expanded) edition, London 1992 (first published as R.B. Kitaj, Oxford 1985)
Richard Morphet (ed.), R.B. Kitaj: A Retrospective, exhibition catalogue, Tate Gallery 1994