The book "Mobile transformers" by A. In. Koritsky is a fascinating and in-depth study that immerses the reader in the world of electrical engineering and power systems. In this work, the author not only shares knowledge about mobile transformers, but also reveals their importance in the modern world, where mobility and efficiency are becoming key factors in the energy industry. From the first pages of the book, the reader is in the center of discussion of topical issues related to the design, operation and use of mobile transformers. Koritsky masterfully combines theoretical aspects with practical examples, which makes the material available to both energy professionals and students seeking to deepen their knowledge. This book can be a real discovery for engineers, power engineers and anyone interested in new technologies in the field of electricity. One of the main topics raised in the book is the need to adapt energy systems to rapidly changing conditions. Mobile transformers become indispensable in situations where rapid response to changes in energy consumption or the need for temporary equipment replacement is required. Koritsky considers various scenarios for the use of these devices, from emergency situations to scheduled maintenance, which emphasizes their versatility and importance. The book also addresses issues of sustainable development and ecology. In the face of global climate change and the need to transition to cleaner energy sources, mobile transformers can play a key role in integrating renewable energy into existing grids. The author shares his views on how these devices can help in optimizing energy distribution and reducing losses, which makes the work especially relevant for those who are interested in the environmental aspects of energy. Koritsky's style is distinguished by clarity and accessibility. He skillfully uses examples from real practice, which allows the reader to better understand complex technical aspects. In his works, there is a deep respect for the subject and a desire to convey knowledge to a wide audience. A. In. Koritsky is the author of several other well-known works in the field of electrical engineering, and his experience and professionalism are evident on every page of Mobile Transformers. This book will be of interest not only to specialists, but also to a wide range of readers, including students of technical universities, teachers, as well as everyone who is interested in new technologies and their impact on everyday life. It will be an excellent addition to the library of anyone who wants to be aware of current trends in the energy sector. If you are looking for information about mobile transformers, their application and significance in the modern world, or just want to expand your knowledge of electrical engineering, book A. In. It will be a great guide for you.... Do not miss the opportunity to immerse yourself in the fascinating world of technologies that change our understanding of mobility and efficiency in the energy sector.