Artist, writer, editor, sometime academic and keeper of The Fictional Museum of Drawing. Co-editor of the academic series Drawing In (I.B. Tauris) and the magazine journal Stimulus → Respond. Together with Deborah Harty they are the drawing research collaboration humhyphenhum and with Lucy O'Donnell and Deborah Harty they are humhyphenhumha. He also works with Russell Marshall as Marshall and Sawdon.