In this book, Josep Romero, Engineer with more than 30 years of experience in the different fields of the plastics sector, opens the doors to detailed knowledge of the plastic injection process. It is a practical guide where all the details related to the process are explained in clear and simple language. With a profuse amount of illustrations for a better assimilation of the concepts. The book is composed of the necessary chapters so that everything that happens during the manufacture of a plastic part using injection technology can be understood, from the preparation of the raw material, to the solution of the defects that may appear during the process. Some of these chapters are: - Main elements of the injection machine and its operation.- Terminology of injection machines.- Differences between cold runner and hot runner molds. - Detailed process of the different phases of the injection cycle. - Defects of the injected parts: Definition, causes and solutions. It is a reference book, whether you already have experience in the injection molding process, or if you have just landed in this exciting sector of technology and want to quickly advance your knowledge.