Achim Müller studied chemistry and physics at the Georg-August University in Göttingen where he received his PhD degree in 1965 with a thesis about experimental thermochemistry. Since 1977 he is full Professor of Inorganic Chemistry I at the University of Bielefeld. His research interests include the chemistry of transition metal complexes, bioinorganic (biological nitrogen fixation) and supramolecular chemistry, materials science, heterogeneous catalysis, molecular physics, and last but not least natural philosophy and the public understanding of science. He is elected member of numerous international and renowned academies and has been acknowledged with Doctor honoris causa and Honorary Professor degrees, Honorary Memberships of science institutions as well as important prizes (Alfred-Stock-Gedächtnispreis 2000 (GDCh), Prix Gay-Lussac/Humboldt of the Ministère de la Recherche 2001, Paris, Sir Geoffrey Wilkinson Prize 2001). His scientific results were presented in nearly 700 papers, in award (named) lectures as well as in about 70 invited/plenary lectures at international conferences. He is coeditor of 10 books covering all the above mentioned subjects with interdisciplinary aspects.