The book "Establishment, installation and operation of the contact network" by A. Freifeld is an indispensable work for all who are interested in railway transport, electrical engineering and engineering sciences. In this edition, the author is deeply immersed in the intricacies of designing, installing and maintaining contact networks, which are key elements of electrified rail transport. In today's world, where the efficient and safe movement of people and goods is becoming more relevant, such a book is a storehouse of knowledge. Freifeld, with many years of experience in electrical engineering and contact network design, shares his knowledge and practical recommendations that will be useful to both students and professionals. The book covers a wide range of topics: from the basics of electrical engineering to complex issues related to the operation of contact networks. Readers will be able to learn about the different types of contact networks, their design features, as well as modern methods of installation and maintenance. This book will be especially interesting for students of technical universities, graduate students and young professionals working in the field of railway transport and electrical engineering .. It will also attract the attention of experienced engineers who seek to update their knowledge and become familiar with new technologies and methods used in this field. If you are interested in topics related to electrical systems, transport infrastructure or just want to deepen your knowledge in the field of engineering, “Device, installation and operation of the contact network” will be a real find for you. One of the main topics of the book is the safety of contact networks. Freifeld emphasizes the importance of complying with all norms and regulations, which is especially relevant in light of the growing requirements for safety on railways. It also addresses the issues of reliability and durability of contact networks, which allows readers to understand how to properly organize the maintenance and modernization of existing systems. Style A. Freifeld is distinguished by clarity and accessibility, which makes complex technical aspects understandable even for an unprepared reader. His approach to the presentation of the material is based on a combination of theory and practice, which allows readers not only to assimilate the information, but also to apply it in real conditions. There are many illustrations and diagrams in the book that help to better understand the processes and constructions described. In addition to the "Device, installation and operation of the contact network", Freifeld is the author of other significant works in the field of electrical engineering and transport construction. His books are popular among students and professionals, which indicates a high level of trust in his knowledge and experience. If you are looking for literature that will help you understand the intricacies of designing and operating contact networks, then this publication will be an excellent choice. In conclusion, “Device, installation and operation of the contact network” is not just a textbook, but a full-fledged guide for everyone who wants to understand the complex but fascinating field of electrical engineering and railway transport. The book will be useful for both students and practitioners seeking professional growth and development. Do not miss the opportunity to enrich your knowledge and skills with this unique publication!