Book excerpt: Environmental psychology is an increasingly important area of research, focusing on the individual and social factors responsible for many critical human responses to the physical environment. With such rapid and widespread growth, the main theoretical strands have often been left unclear and their scientific and practical implications have been underdeveloped. This essential and stimulating book contextualizes and critically analyzes the main theoretical ideas. It compares the different theories, assessing each one's possibilities and limitations, and demonstrates how each approach has been used for the development of knowledge of environmental psychology. The research area infiltrates a broad selection of disciplines, including psychology, architecture, planning, geography, sociology, environmental issues, economics and law. It also offers significant contributions to a wide range of policy evaluations. It will prove invaluable to academics and practitioners from across these disciplines, above all those in planning, environmental studies, human geography and psychology.