1 Photoinitiators and Photoinitiation Mechanisms of Free-Radical Polymerisation Processes.- 2 Photoinitiated Cationic Polymerization.- 3 The Chemistry of Photoresists.- 4 Photografting Processes onto Polymers.- 5 Photochromic Imaging.- 6 Four-Center Type Photopolymerization of Diolefin Crystals.- 7 Excited-State Properties of Photoinitiators: Lasers and their Applications.- 8 Post-Cured Stability of Radiation-Cured Resins.