Professor Tomas G. Villa graduated in Salamanca University (Spain), where he also obtained his PhD in 1976. Subsequently, he moved to the University of California at Davis. After several years conducting research on Yeast Biochemistry and Taxonomy integrated in Professor Herman Jan Phaff´s research group, Prof. T.G. Villa aquired an Assistant Professorship in Microbiology at the Faculty of Pharmacy-University of Salamanca in 1980. In January 1983, Dr. Villa obtained a Full Professorship in Microbiology in the Faculty of Pharmacy, University of Santiago de Compostela. Since then, he has been conducting research and teaching in Microbiology and Biotechnology in this position. He has published many original papers on Biochemistry, Microbiology and Biotechnology, as well as several books, and has supervised 25 PhD students.Professor Trinidad de Miguel Bouzas graduated as a Pharmacist at the University of Santiago de Compostela, where she also obtained her PhD degree in 2000 under the supervision of Prof. Tomas G. Villa. She has published many original papers, book chapters and teaching materials in the fields of Bacterial Taxonomy, Biochemistry and Biotechnology. After several years as postdoctoral fellow under the leadership of Prof. Wolfgang Wohlleben (University of Tübingen, Germany), she returned to her former group and obtained a position as Assistant Professor at the University of Santiago de Compostela, where she teaches General Microbiology, Food Microbiology and Biotechnology. Her current projects involve interdisciplinary research in the field of new antimicrobials of natural and synthetic origins and the design of new dosage forms of clinical use.