1. The Photochemistry of Novel Electron-Transfer Three-Component Visible Light Photoinitiating Systems / Janina Kabatc -- 2. Photoreactions of Benzophenone in Solid Media: Recent Developments and Applications / Mihaela Avadanei -- 3. Photo-Chemical Methods as an Alternative Methodology in the Deposition of Materials with Chemical Sensor Properties and Photo-Luminescent Characteristics / G. Gerardo Cabello, A. Luis Lillo, Claudia Caro, G.E. Buono-Core, Marisol Tejos -- 4. Photolabile Molecules as Light-Activated Switches to Control Biomolecular and Biomaterial Properties / Catherine A. Goubko, Nan Cheng, Xudong Cao -- 5. Photosystems at High Temperature: Mechanisms of Adaptation and Damage / Yasuo Yamauchi, Yukihiro Kimura -- 6. The Little-Known Wavelength Effect in Provitamin D Photochemistry: The Ambiguous Role of the Weak Irreversible Channel / Irina Terenetskaya -- 7. Exploring Organic Photochemistry with Computational Methods: An Introduction / Diego Sampedro -- 8. Recent Progress in Chirality Research Using Circularly Polarized Light / Tsubasa Fukue -- 9. Photoinduced Transformation Processes in Surface Waters / Davide Vione, Claudio Minero, Valter Maurino, Romeo-Iulian Olariu, Cecilia Arsene, Khan M. G. Mostofa -- 10. Photochemical Processes in Needles of Overwintering Evergreen Conifers / Piotr Robakowski -- 11. Theories in PAM Chlorophyll Fluorescence Measurement of Plant Leaves / Ichiro Kasajima, Maki Kawai-Yamada, Hirofumi Uchimiya