5 stars (Useful and interesting - STRONGLY RECOMMENDED) - Despite the intimidating name and size of this tome, I found it fascinating to read. It covers everything from light bulb selection to rooftop chiller maintenance. The depth and breath of coverage is amazing. This is not a hippie guide to backwoods eco-conservation. It is a practical manual, firmly grounded in science and economics that explains different strategies for maximizing comfort while minimizing energy use. In every case, the author examines both the pros and cons of the measure, and calculates the expected payback term. It is so helpful to have a book that is realistic in its treatment of energy conservation. Lots of books outline promising energy saving techniques, none I've read before talk so frankly about the problems you will encounter when you implement them. Quite technical in many places, the text excels at explaining important concepts that are often ignored in other texts. I have a background in physics, but not until reading this book did I have a good grasp of the operation of absorption coolers or how the spectrum of a light bulb affects the visual comfort of the scene it illuminates. The concise overview of heat transfer mechanisms is more thorough than any thermodynamics textbook I've ever read. Most important of all is the practical advice that is clearly based on a huge body of real experience. As the book so frequently points out, energy saving measures are useless if they break or are defeated by building occupants. Hundreds of (non-obvious) examples of these failures are given, with pictures. This book would be great for anyone with responsibility for designing or maintaining buildings of any size. If you are hesitant to pay the high price, find it at a local library. I don't write many Amazon reviews, but after reading this book I felt compelled to strongly recommend it. 5 stars (Superlative! A must have!) - Superlative! ? The ENERGY EFFICIENCY MANUAL by Donald Wulfinghof... Energy Institute Press :: Environment :: Construction :: Architecture :: Technology & Industrial Arts :: Technology :: Science&Mathematics :: Public :: Commercial :: or Industrial Buildings :: P :: Energy Efficiency Manual- for everyone who uses energy- pays for utilities- designs and builds- is i