× Add/edit detail images Images onlineChoose FileChoose FileChoose FileChoose FileChoose FileChoose File Prev Next 3/3 Overview Installation view, Museum Folkwang, Essen, 2015 © Estate of Joan Mitchell photographs: Museum Folkwang, Jens Nober 2015 Joan Mitchell The Sketchbook Drawings Museum Folkwang, Essen, 27 February – 31 May 2015