This book has been produced by the EU Leonardo Project called Polymer REACH. The overall objective of Polymer REACH was to develop an e-learning platform and training materials for the European polymer industry to learn and understand how to manage their obligations under the European legislation - Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). This book forms part of the training materials which will complement the industry specific e-learning platform to enable the polymer industry to learn how to manage their obligations under REACH. The overall impact will be an increase in the knowledge base of the polymer industry on REACH, which will in turn help to increase competitiveness and sustainability of the sector. This book will be useful to anyone who works with polymers or the chemicals that are used to make polymers, whether they are end-users or suppliers. REACH is affecting everyone concerned with the polymer industry and this book will help them to prepare for the impact and consequences of the REACH legislation.