Patrick C. Hallenbeck has a BSc in Physics and a PhD in Biophysics. He is a Full Professor in the Department of Microbiology and Immunology,Faculty of Medicine, Université de Montréal. Dr. Hallenbeck’s research focuses on microbial physiology, applied microbiology, biotechnology,biological energy production, anaerobic metabolism, nitrogen fixation,molecular genetics, and protein chemistry. Dr. Hallenbeck has conducted numerous projects in both fundamental and applied research, and teaches at both the undergraduate and graduate level. He is currently President of the Biohydrogen Division of the International Hydrogen Energy Association,and on the editorial boards of "Bioresource Technology","Frontiers in Microbiology" and "Marine Biotechnology". He is the editor of “Recent Advances in Phototrophic Prokaryotes” based on the proceedings of the 13th International Symposium on Phototrophic Prokaryotes and published by Springer