The primary function of this book is to treat the topic of lighting design in such a manner as to bridge the gap between architects and illuminating engineers. The work is divided into three parts: Part I, Principles of Design, offers information and analysis of how natural and artificial lighting affects building design, how illumination levels affect vision, and the relationship of lighting to safety. Part II, Light and Architecture, discusses the nature of light, economic factors, lighting control and the interaction between lighting and other building systems--heating, structural, and electrical. Part III, Computation, presents daylight and artificial light calculation methods, details of the lumen calculation method, and explains how to combat glare from light sources. Nearly 380 photographs and drawings clarify principles by way of illustrating both good and bad practices in lighting. (KK)