Natural light defines spaces, creates ambience and presents architecture better than any other building material. We feel comfortable and work more efficiently in well-lit spaces; light enhances our health. Furthermore, the balanced implementation of daylight and artificial light contributes significantly to energy savings, especially in office buildings. This new addition to the series „Detail Practice“ is a collection of work from experienced practitioners compiling essential information for the design of lighting using both artificial and natural sources. Topics covered range from basic design issues concerning the siting and layout of buildings and the design of their facades, to detailed case studies of current daylight and artificial lighting systems.