The "Rechenbuch Metall" is a textbook and exercise book designed to acquire basic and specialized mathematical knowledge in the field of metal technology. It can be used alongside lessons as well as for self-study. The book includes 18 interactive simulations and 15 animations to support the learning process. The digital content is also suitable for display on small screens (smartphones, tablets). A clear structure divided into Part A: Technical Calculations, Part B: Simulation Tasks, Part C: Advanced Tasks, and Part D: Project Tasks aids the user's work. The images from the book are available in the European Library and are also suitable for use on a whiteboard. The 34th edition has been updated and expanded by 8 pages. The following learning areas have been added or newly included: Acceleration Force, State Variables of Gases, Workshop Project Paper Punch, Feed Drive of a CNC Milling Machine, Weight Force, and Dimensional Tolerances.