Michael Grodzicki obtained a Ph.D. in physics from the University of Hamburg, Germany, in 1977. After the habilitation in theoretical physics (Hamburg 1986) he worked as research associate at HASYLAB, Hamburg, as Assistant Professor of theoretical organic chemistry at LSU, New Orleans, and was head of the theoretical physics group, University of Lübeck. Since 1998 he is Senior Scientist and Associate Professor (2002-2006; 2009: Hon-Prof.) at the Department of Chemistry and Physics of Materials, University of Salzburg. His scientific research comprises more than 230 publications in mathematical physics, molecular and solid state physics, theoretical chemistry, bioinorganic chemistry, mineralogy, and methodology of physics. His book on ”Physical Reality” is the result of an almost 40 years lasting teaching experience, especially in theoretical physics and methodology of physics for future high-school teachers.