Regarded as one of the founders of conceptual art, Sol Lewitt devised guidelines and diagrams that allowed for artworks, such as his wall drawings, to be executed by his assistants. This has given rise to the myth that the artist didn’t do any work himself, when in fact he worked prolifically – in one summer alone he painted more than 260 gouaches and often worked seven days a week.

Here we learn not just how Lewitt worked, but about the kind of man he was, as remembered by his former assistant Jeremy Ziemman and the curator of the Sol Lewitt Collection, Janet Passehl.