Barnabas Calder is a Senior Lecturer in the School of Architecture at the University of Liverpool, UK. He is also head of the History of Architecture Research Cluster – the largest architectural history research group in the UK. He is working on a history of the relationship between energy and human culture, and a complete works of Denys Lasdun, funded by the Graham Foundation and in collaboration with the RIBA British Architectural Library Special Collections. Barnabas also works on British architecture since 1945.