"Very interesting and useful book that allows the reader to gain an enhanced understanding of the stocks and flows of complex systems as well as their role in energy policy, as projected by the author. ... a marvelous book, proportionating a wonderful reading, useful for managers and practitioners, teachers, researchers, and students of design and assessment of policy making for complex, dynamic energy systems." (Prof. Dr. Manuel Alberto M. Ferreira, Acta Scientiae et Intellectus, Vol. 2 (3), 2016)