Damage to plastic products requires immediate action in often complex situations. Failure and damage analysis is then an important tool for avoiding further economic losses and in the next steps for quality assurance and product safety. In order to solve problems and develop remedial measures, basic knowledge of plastics analysis, materials and typical damage mechanisms as well as systematic approach are necessary. The book supports the reader in all these points by providing a basic insight into the systematic approach and serving as a guide for practical implementation. In particular, manufacturing and material-related aspects are also taken into account, so that a comprehensive and universal method for determining the causes of damage to plastic products is presented. Examples in the form of briefly summarized cases of damage from practical experience as a damage analyst round off the descriptions of the procedure.