Professor Johannes Ring, MD, DPhil, has been Director of the Clinic and Polyclinic for Dermatology and Allergy am Biederstein, Technical University of Munich since 1995. In 2005 he was also appointed Consulting Medical Director at the Department of Dermatology and Allergology, Hochgebirgsklinik Davos, Switzerland, and since 2009 he has been Director of Innovative Diagnosis and Therapy at the Christine Kühne Center for Allergy Research and Education, Munich-Davos-Zurich. Dr. Ring has more than 40 years’ experience in dermatology. He has served as President of the German Society for Allergology and Clinical Immunology (1993-2002), the European Academy of Dermatology and Venereology (2004-6), the Collegium Internationale Allergologicum (2002-6), and the European Society for Dermatological Research (1989-90). He has served as Editor in Chief of Allergy and Clinical Immunology International and on the boards of various other journals. Dr. Ring is a recipient of the Bavarian State Medal for Environment and Health, the Erich Fuchs Award, and the Clemens von Pirquet Award. He has organized various major congresses, including the World Allergy Congress in 2005, with 7000 participants. Dr. Ring has published more than 600 original articles and more than 400 review articles and has authored or edited 25 books, including some as sole author.