ROBERT KRONENBURG is an architect and senior lecturer in the School of Architecture and Building Engineering at the University of Liverpool, UK. A Fulbright fellow, he has been a guest lecturer at universities across Europe and the USA. He has contributed to a range of programmes for BBC Radio, and has written for Architectural Design, The Architects' Journal, Building Design and Fabrics Architecture. His books include Houses in Motion (Wiley-Academy, 1995; 2nd Edition, 2002), FTL: Softness Movement and Light (Wiley-Academy, 1997) and Portable Architecture (Architectural Press, 2000), and he is editor of Transportable Environments (E & FN Spon/Routledge, 1998). In 1998 he was curator of the… major exhibition 'Portable Architecture' held at the RIBA architecture centre, London, UK, and of the touring exhibition 'Spontaneous Construction'.