Nicola Coldstream taught medieval art history for many years before becoming a deputy editor on the Grove 'Dictionary of Art', with responsibility for medieval architecture. She then edited the Soundtrack Gallery Guide at the National Gallery, London. Her books include 'Masons and Sculptors' (1991) and 'The Decorated Style. Architecture and Ornament, 1240-1360' (1994). She has published many articles on medieval architecture, decoration, and furnishings. She is now an independent scholar and a Fellow of the Society of Antiquaries of London.