Biographical note

Peter Tregenza is Emeritus Professor in the School of Architecture at the University of Sheffield. As an architect and engineer he has been fascinated by the beauty and complexity of daylight for more than forty years, teaching and studying the subject internationally. He has been Visiting Professor at the National University of Singapore and at the Chinese University of Hong Kong, and has worked in schools of architecture in the UK, North and South America, Australia and New Zealand, and China. He has been involved in the research activities of the Commission Internationale de l'Eclairage, especially the CIE/WMO International Daylight Measurement Project and European Union programmes. His publications include many research papers on daylighting and he is the co-author with David Loe of The Design of Lighting (Routledge, 1998). Michael Wilson is Principal Research Fellow in the School of Architecture and Built Environment at the University of Westminster, UK. He was Director of the Low Energy Architecture Research Unit from 1987 until 2010. He has undertaken more than 25 research, dissemination and demonstration projects in daylighting, acoustics and energy for the European Commission. In particular he coordinated a research project on sun tracking systems and projects producing interactive teaching packages on daylight. He has lectured in the UK, throughout Europe, in South America and South Africa.