Susanne Brakmann is head of the junior research group "Applied Molecular Evolution" at the University of Leipzig (Germany) and a Member of the Biotechnological-Biomedical Center of Leipzig. She studied Chemistry at the Technical University of Braunschweig where she received her diploma in 1988, moving afterwards to the University of Karlsruhe to work on her thesis under the supervision of Reinhold Tacke (Ph. D. 1991). She was postdoctoral fellow at the Max-Planck-Institute for Biophysical Chemistry in Gottingen where she worked with Manfred Eigen before she moved to Leipzig in 2001. She is interested in directed evolution as a tool for understanding and optimizing enzyme functions, focusing on nucleic acid polymerases and their biotechnological applications. Andreas Schwienhorst is a group leader at the Institute of Microbiology and Genetics at the University of Gottingen (Germany). He was born in Warendorf and did his studies of Biochemistry and Prehistory in Munster and Gottingen. His thesis was carried out at the Max-Planck-Institute for Biophysical Chemistry under the supervision of Manfred Eigen. He was a visiting scientist at the Salk Institute, La Jolla and the Los Alamos National Laboratory (USA), then took a position as a group leader at the Institute for Molecular Biotechnology before moving to the University of Gottingen in 1997. In 1998 he received the Biofuture Award. Currently, he is interested in the discovery of novel targets for drug intervention as well as in methods of molecular evolution and their applications in drug discovery and catalysis.