The book provides a comprehensive introduction to DIN standards and their application. It is structured according to manufacturing and functional aspects of the standards, offering detailed information and serving as a reference work for both study and practice. As such, it provides first-hand information for the fields of mechanical engineering and electrical engineering, which is essential in design and manufacturing. For numerous standards, thematically related information and references to additional standards and standardization literature that deepen the subject matter are provided, along with the context of European and international standards. The 14th edition has been thoroughly revised and reflects the current state of the standards.