This project, coordinated by Archimedes sarl, France, is funded by the EU Altener programme from 1/1/99 to 31/12/00. LEARN is a partner responsible for questionnaire design and analysis, and contributing to brochure design. The project examines the performance and use of sunspaces in order to market then in such a manner that maximises their energy saving potential and to avoid misuse with the associated energy losses.