This guidebook, published by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy, is a must read for anyone interested in water efficient technologies. The paper gives an excellent overview of technologies that can be installed in publicly owned buildings, as well as case studies of the water savings and payback periods of the recomended technologies. Detailed explanations of how these technologies save water and energy are found in this report, making it a valuable read for anybody trying to learn about water efficiency and conservation. The recomendations in this guidebook can be applied by anyone, in the home or at the office, from small businesses to large corporations. For full report, click here (PDF 0.5 MB) or on the image below.