"A timely, comprehensive and well-structured overview of the state-of-the-art in the field of biofuels production, characterization, marketing and impact."
-Franco Berruti, Western University, London, Ontario, Canada

"As a scientist, with more than 35 years of work experience, in the field of bioenergy related activities, I am very much convinced that the book will certainly be an excellent asset to any scientific/academic institution."
-Giacobbe Braccio, E.N.E.A., Rome, Italy

"The strength is, from my point of view, the entire consideration starting from the biomass origin via the conversion process up to the final biofuel. This is of importance to gather as reader a comprehensive description of potential biofuel pathways."
-Michael Seiffert, Deutsches Biomasseforschungszentrum gemeinnutzige GmbH, Leipzig, Germany

"...prestigious researchers have collaborated to provide readers a very updated and critical view of aspects extending from raw materials to biofuels production technologies, including physico-chemical properties, life cycle and economical assessment, among others."
- Pedro Maireles-Torres, University of Malaga, Spain

"Undoubtedly the coverage of the book, in terms of chapter topics, is very comprehensive with an adequate sequence. As the world is rapidly moving towards cleaner fuels, the use Biogas and BioH2 is going to increase rapidly. The book can serve as a knowledge base for students, researchers or technicians working in this area. If you have a focused interest in up-to-date valuable source of information on the core aspects in the field of Production and Purification of Biogas and BioH2, this is one book you cannot live without."
-Elizabeth Duarte, University of Lisbon, Portugal