Royall, K., 'Posters of the Second World War: The Fourth Arm of Defence?' MA Thesis, completed 1991. Westminster University Poster campaigns from the Second World War are a part of people's collective memories. Frustrated by the lack of published information on the subject, this project investigates the British posters of the Second World War produced by the Ministry of Information and the response to them. In 2004 Royall was Course Administrator at the V&A.