Catherine Croft is the Director of the C20 Society, which campaigns for the preservation of the best buildings constructed from 1914 onwards. She is an expert on post war architecture, and the public perception of C20 design, particularly changing attitudes to brutalism and post modernism. She established and runs the Conservation of Historic Concrete course at West Dean College, is the author of Concrete Architecture and has contributed to many other books and publications, including a series of concrete repair case studies for the Getty Institute due out later this year. She lectures widely on architecture and heritage, in the UK and abroad, and was a judge of the Carbuncle Cup award for the worst new building in the UK in 2017. She previously worked for English Heritage, The Theatres Trust, The Victorian Society, the RIBA Drawings Collection and Middlesex University. She has appeared on many Radio and TV programmes, giving an expert opinion on C20 architecture and heritage, and is a regular contributor to architectural magazines. She is currently the editor of C20 Magazine, which she launched in 2012.