The book "Choice of equipment and determination of parameters of substitution schemes" edited by Ershov M. C. and other authors represents an important work in the field of electrical engineering and energy, which will be useful to both students and practitioners. This publication not only illuminates the theoretical foundations, but also offers practical recommendations on the choice of equipment and the calculation of parameters, which makes it an indispensable tool for anyone who seeks to deepen their knowledge in this field. The main idea of the book is to help readers understand how to choose the right equipment for different electrical systems and how to determine the parameters of replacement schemes. This is especially true in today's world, where the efficiency and reliability of electrical networks are becoming increasingly important. The authors consider in detail the methods of analysis and design of electrical systems, which allows readers not only to master the theory, but also to apply the knowledge gained in practice. The book will be of interest to students of technical specialties, graduate students, as well as engineers and specialists in the field of energy and electrical engineering .. If you are studying electric machines, transformers or power supply systems, this publication will become a reliable assistant for you. It will also be useful for those preparing for exams or certifications, as it contains many examples and tasks that will help consolidate theoretical knowledge. The topics raised in the book cover a wide range of issues related to the choice of equipment for electrical systems. The authors discuss different types of equipment, their characteristics and application depending on the operating conditions. An important aspect is also the analysis of substitution schemes, which allows a more accurate assessment of the behavior of electrical systems in different modes of operation. The book focuses on modern methods and technologies, which makes it relevant in the light of the constant development of the electrical industry. The style of the authors is distinguished by the clarity and accessibility of the presentation, which makes it easy to assimilate complex technical concepts. Each section of the book is accompanied by examples and illustrations, which makes the material more visual and understandable. Ershov M. C. and his colleagues strive to make complex topics available to a wide audience, which is one of the strengths of this publication In addition, it is worth noting that the team of authors includes specialists with extensive experience in the field of electrical engineering, which gives the book additional value. Their practical advice and recommendations are based on real-world case studies, allowing readers to better prepare for the challenges they may face in their professional activities. If you are looking for literature that will help you understand the intricacies of choosing equipment and the parameters of replacement schemes, then “Selection of equipment and determination of parameters of replacement schemes” will be an excellent choice. This book will not only expand your knowledge, but also inspire new ideas and solutions in the field of electrical engineering. In conclusion, this publication is an important contribution to the literature on electrical engineering and energy, and it is worth reading to everyone who is interested in this topic. It will help you not only to become a more competent specialist, but also to open new horizons in your professional career.