Axel G. Griesbeck studied political science and chemistry at the University of Munich, Germany, where he received his doctoral degree in 1984 for work on singlet oxygen. After postdoctoral positions in Wurzburg, ETH Zurich, and the Weizmann-Institute in Rehovot, he finished his habilitation in 1991 at the University of Wurzburg. Since 1995, he has been a professor of organic chemistry and photochemistry in the Department of Chemistry at the University of Cologne, Cologne, Germany. He was a visiting professor at Wisconsin (Madison, Wisconsin), Tsukuba (Japan), and Tapei (Taiwan) and received the Grammaticakis-Neumann prize in 1997 and the Honda-Fujishima award in 2009. His current research activities are focused on using organic molecules as substrates and as catalysts for photoinduced reactions, either directly excited or generated by energy transfer as well as by electron transfer processes. The reactions are performed in solution phase, in gas phase, or in nanocompartments. Recent applications of these processes are the syntheses of antimalaria-active peroxides by photooxygenation. Michael Oelgemoeller received his diploma from the University of Munster, Germany in 1995 and his PhD from the University of Cologne, Germany in 1999. He was a researcher at the Photochirogenesis Project in Osaka (1999-2001) and at Bayer CropScience Japan in Yuki (2001-2004). From 2004 to 2008 he held a position as a lecturer in organic and medicinal chemistry at Dublin City University in Ireland. In February 2009, he joined James Cook University in Australia as an associate professor in organic chemistry. In 2000, he received the Kurt-Alder award of the University of Cologne. He was a visiting professor at the University of Pau in France in 2009, Osaka Prefecture University in Japan in 2011 and the Nara Institute of Science and Technology in 2012. His research activities include synthetic organic photochemistry, solar photochemistry, the development of new photochemical synthesis tools, and photochemical water treatment. Francesco Ghetti graduated in physics from Pisa University in 1980 and has been a researcher at the Institute of Biophysics (Pisa section) of the Italian National Research Council (CNR) since 1985. His main research topics are photomotile reactions in microorganisms and related primary events of phototransduction and biological effects of environmental ultraviolet radiation on microorganisms and plants. He has served as treasurer of the European Society for Photobiology (1999-present), as president of the Italian Society for Photobiology (2002-2007), and as one of the vice presidents of the International Union for Photobiology (2004-2009). He has also organized several international photobiology congresses, directed NATO advanced study institutes, and chaired numerous symposia.