The book is representing a reference text for researchers and engineers involved in catalysis, chemistry, technology development and industrial processes in the field of catalytic, sustainable, clean energy production and direct conversion of natural feedstocks into energy, by analyzing new directions and opportunities in the area and integrating industrial, governmental and academic points of view. It will also serve as a basis for the definition of a Roadmap for the role of catalysis in Energy Production. Each theme will be introduced from a broad perspective, providing the reader with both the "state-of-the-art" and the frontier research in the field.