The success story of the textbook'Hydrodrive. The basics and components', familiar to many under the German name 'Der Hydraulik Trainer', began with the first edition of this book in 1978. Since then, she has accompanied many generations of engineers as a tutorial, self-taught guide, and is still an indispensable assistant in the workplace. The reason for the success was the concept laid down by the very first authors: to explain the basics and functioning of hydraulic devices in a section indicating the principal schemes. Thus, the theory was closely related to practice.. I am sorry I was not on hand at the time.... Everything is chewed - absolutely anyone can understand, but at the same time the book contains just a sea of information I highly recommend .. But the paper version is much better. Squeezed all 7zip' ohm in 4 volumes. The size of the PDF could not be made smaller.