The text is divided into four parts:
1. Light + Human Needs describes the principles and technical background involved in designing lighting that satisfies vision and visual comfort needs,
2. Light + Economics & Environment deals with economic and environmental factors related to quality design,
3. Light + Architecture addresses lighting the built environment, and
4. Light + Application presents an updated and excerpted portion of the IESNA Design Guide, introduced in the IESNA Lighting Handbook, 9th Ed.
Supplementing the Design Guide are questions that provide a checklist of critical issues to lighting projects and an applications guide. Numerous sketches and photographs, glossary, and end notes that reference other technical papers and IES publications are included.
