Carmen Hass-Klau was born in Germany. She studied Urban and Regional Planning in Berlin, followed by two postgraduate degrees in Britain. She had her own consultancy in England, Environmental and Transport Planning, until she moved to Spain. She is Professor Emeritus of European Public Transport at Wuppertal University, Germany. She has published a large number of articles and 13 books, including The Pedestrian and the City (Routledge 2015). She is currently working on a new book.