Handbook of UV Degradation and Stabilization, Fourth Edition , has been completely updated with the most recent literature and patents, discussing different aspects of UV-related phenomena that occur when polymeric materials are exposed to UV radiation. It reviews existing literature, looking at how plants, animals, and humans protect themselves against UV radiation. This review permits the evaluation of mechanisms of protection against UV used by living things and potential application of these mechanisms in the protection of natural and synthetic polymeric materials. Other chapters look at more specific aspects of UV degradation and stabilization, such as photophysics, specific polymers and rubbers, analytical methods used in UV stabilization, health and safety, and more. This book is an excellent companion to the Databook of UV Stabilizers . Both books supplement each other without repeating the same information- one contains data, the other theory, mechanisms of action, practical effects, and implications of application.