The training material for hydraulics consists of several parts. The core components are the exercise booklet for the trainee and the protocol sheets. The circuits and experiments are carried out on a training unit using the protocol sheets. Due to the reorganization of industrial metal professions, the imparting of control technology qualifications has been made mandatory. Pneumatics is addressed first according to the training regulations, followed by suitable parts of hydraulics depending on the profession. Nevertheless, the units (pressure, force, area, etc.) are also covered, as they cannot be assumed to be known, especially in further training. This book does not provide a comprehensive overview of the fundamentals of hydraulics. Therefore, it includes the section 'Fundamentals and Equipment Knowledge, Calculations, and Application Examples', which allows for a deeper understanding of the content.