From the reviews: "This excellent and extremely comprehensive 'up-to-date' book points out both the immense importance of anaerobic microorganisms in the environment and their extreme diversity. ... This book will be of great interest to microbiologists with a special focus on investigations concerned with microbial physiology, energy generation in microorganisms, and metabolic potentials in environmental and industrial settings. ... An exciting book with a high scientific as well as practical and environmental impact ... . Congratulations to the authors as well as to the editors." (A.Schmidt, Chemotherapy, Vol. 5 (2), 2004)