Keith Arnatt has occupied a key position in the history of British conceptual art for almost 50 years. Absence of the Artist, Arnatt’s second exhibition with Sprüth Magers and his first in the London gallery, brings together a range of important work conceived between 1967-72, key years when Arnatt made Self-Burial (1969), Portrait of the Artist as a Shadow of his Former Self (1969-72) as well as The Absence of the Artist (1968). From 1 September.