By Elizabeth Bruton, Jeremy McCarthy and Dermot Turing Zygalski sheets: Polish codebreaking and the role of reconstruction in the Top Secret exhibition at the Science Museum By David H Lee Reports and commands: deciphering a health exhibition using the SPEAKING mnemonic By Imogen Holmes-Roe The Whitworth: a place for Industry and Art By Alexandra Rose Science and the City: Introduction By Ian Blatchford Lyon Playfair: chemist and commissioner, 1818–1858 By Sarah Wade Editorial By Manon Parry The valuable role of risky histories: exhibiting disability, race and reproduction in medical museums By Katy Barrett, Eleanor Crook, Marc Quinn and Studio Roso Artist interviews – new art for Medicine: The Wellcome Galleries By George Vasey Misbehaving Bodies: exhibiting illness By Jörn Wolters AIDS memorials from obituaries to artworks – a photo essay