In recent years, many advances have been made in developing surface treatments to alter the chemical and physical properties of polymer surfaces without affecting their excellent bulk properties. In particular, the past two decades have seen the rapid development of new strategies for the design of polymer functional surfaces. As one of the main techniques developed to achieve efficient surface modification of polymeric materials, electromagnetic radiation-induced surface modification has been widely applied as simple, useful and versatile approach to improve the surface properties of polymers. This book examines the recent advances in electromagnetic radiation-induced surface modification of polymers, predominantly focusing on the research work carried out in the last decade.