Dr Fawkes has distilled a lifetime of experience into this easy-to-read book which provides an excellent overview of the subject of energy efficiency and the commercial opportunities that it represents. This is essential reading for those new to the field, especially the new wave of energy efficiency entrepreneurs. Greg Lavery, CEO Lavery Pennell New energy efficiency related policies and regulations are being promulgated somewhere in the world every day, companies both brand new and long established enter some part of the energy efficiency marketplace while others shut up shop, get acquired, or change business focus just as often, and energy related technology changes more rapidly than at any time in history. So it is extraordinarily valuable to have a stake in the ground to gauge where we are right now as well as a searchlight to show us whats out there. Energy Efficiency by Steven Fawkes does both. With this new book Steven has done an admirable job of covering the enormous universe of factors which impact how well energy is used. Not every reader will need to take in every paragraph, but there is not a single individual interested in the topic of energy efficiency who would not profit by browsing most chapters and devouring some in fine detail. If that were not enough, the references trailing each chapter more than justify this books purchase price on their own. Robert Allender, Energy and Carbon Management Advisor, Hong Kong Dr Fawkes new book stands out because of its extraordinary breadth, taking in the technologies, economics and politics of energy efficiency in a very thorough analysis. As Dr Fawkes points out, problems for investors in this area include a lack of understanding of the processes involved. If all investors looking to invest in energy efficiency were to read this book first that problem would diminish. Adam Forsyth. Research Director, Arden Partners, Number 1 Extel Ranked Analyst in New Energy and Clean Technology 201