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Second printing. Alternative Sources of Energy is a seminal work in the early "appropriate technology" and modern environmental movements and is largely composed of content first printed in the magazine of the same name. The book is primarily a technical and philosophical manual for decentralizing energy production. It was written during the height of the 1973 oil crisis, a time when there was a sudden, urgent interest in moving away from fossil fuel dependence. The book is often cited by historians of the environmental movement as a foundational text for the "back-to-the-land" movement. Many of the concepts discussed in the book?such as passive solar design and integrated energy systems?which were considered "fringe" or "alternative" in 1974, have since become standard practices in green building and renewable energy engineering today. Large trade paperback format (15 ?? x 11?), 278 pp., over 500 illustrations. Covers are rubbed, worn and slightly soiled.