From the reviews: <p> This is a very rich volume and the writing and organization are well suited to make it easy for readers to readily gain an overview of each of the topics. A high standard has been set for the next volume in the series, also edited by Zannoni, which will be subtitled a ~Diversity of Prokaryotic Respiratory Systems'. (Robert Gennis, Professor of Biochemistry and of Biophysics and Computational Biology, University of Illinois, Urbana, IL, USA in Photosynthesis Research 83, 2005)