The Mechanical Engineering . Encyclopedia . Section IV (calculation and design of machines). Volume IV-02, no. 1. Electric drive. Hydro- and Vibration Drives" edited by K. In. Frolova is a unique work that will become an indispensable assistant for students, engineers and anyone interested in modern technologies in the field of mechanical engineering. This encyclopedia is an in-depth and comprehensive study covering key aspects of the design and calculation of various types of actuators that play an important role in modern mechanical systems. The book begins with the basics of the electric drive, examining in detail its components, principles of operation and application. The reader will be able to learn about the different types of electric motors, their characteristics and features, as well as the methods of managing them. It is important to note that the authors are not limited to only theoretical aspects, they also include practical examples and calculations, which makes the material accessible and understandable to a wide audience. The next section of the book is devoted to hydraulic drives. Systems using fluid for energy transfer are considered here, which is an important aspect in mechanical engineering. Readers will be able to get acquainted with the principles of operation of hydraulic systems, their design and calculations, as well as with their application in various industries. Hydraulic drives are widely used in construction, agriculture and many other areas, and understanding their work opens up new horizons for engineers and designers. No less interesting is the section devoted to vibrodrives. Vibration systems have their own unique characteristics and applications, and the book explains in detail how they work, how to design and calculate them. This information will be especially useful for professionals working in the field of process automation and mechanization. The Mechanical Engineering . Encyclopedia" edited by K. In. Frolov will be interesting not only for students of technical universities, but also for practicing engineers who want to update their knowledge about modern technologies and design methods. It can also attract the attention of researchers and scientists involved in the development of new systems and technologies in the field of mechanical engineering. The topics raised in the book cover a wide range of issues, from the basics of design and calculation to current trends in electric drives and hydraulic systems. The book draws attention to the importance of integrating new technologies and methods into traditional approaches, which makes it especially relevant in the context of the rapid development of the engineering industry. Style of author and editor K. In. Frolov is distinguished by clarity and accessibility of presentation, which allows readers to easily assimilate complex technical concepts. Frolov, known for his work in mechanics and mechanical engineering, created a book that not only informs, but also inspires new ideas and solutions. If you are looking for a high-quality and in-depth study in the field of mechanical engineering, the book "Engineering. Encyclopedia . Section IV (calculation and design of machines). Volume IV-02, no. 1. Electric drive. Hydro- and Vibration Drives” will become your reliable satellite in the world of technology and engineering Do not miss the opportunity to immerse yourself in the fascinating world of mechanical engineering and discover new horizons of knowledge!