Hockney painted portraits at different periods in his career. From 1968, and for the next few years he painted friends, lovers, and relatives just under lifesize and in pictures that depicted good likenesses of his subjects. Hockney's own presence is often implied, since the lines of perspective converge to suggest the artist's point of view. Hockney has repeatedly returned to the same subjects – his parents, artist Mo McDermott (Mo McDermott, 1976), various writers he has known, fashion designers Celia Birtwell and Ossie Clark, curator Henry Geldzahler, art dealer Nicholas Wilder, George Lawson and his ballet dancer lover, Wayne Sleep.