The book "counters for accounting of reactive energy and methods of their verification" by H. N. Selezneva is an indispensable source of knowledge for energy professionals, engineers and students seeking to deepen their knowledge of modern electricity metering technologies. With the rapid development of the energy sector and the increasing need for effective resource management, this publication is becoming relevant and in demand. Author, N. N. Seleznev is a recognized expert in the field of electrical engineering and energy, and in his book he shares not only theoretical foundations, but also practical aspects of working with reactive energy meters. The book discusses the key principles of these devices, their classification, as well as verification methods, which makes it useful for both professionals and students studying electrical engineering. Seleznev emphasizes the importance of accounting for reactive energy, which plays a significant role in the functioning of electrical systems. He explains how proper metering of this energy can help in optimizing the operation of power grids and reducing energy costs. Readers will be able to learn how different types of meters can be used depending on the specifics of energy consumption and what factors affect their accuracy. The book will be of interest not only to engineers and specialists in the field of energy, but also to students of technical universities who want to gain the practical knowledge necessary for a successful career. It will also be useful for energy resource managers and anyone interested in modern electricity metering technologies. The topics raised in the book cover a wide range of issues, ranging from the basics of electrical engineering to complex methods of verification and calibration of meters. Seleznev shares his observations and recommendations based on years of experience in this field. It also looks at current trends and innovations that could change the approach to energy accounting in the future. The author's style is distinguished by clarity and accessibility of presentation, which allows the reader to easily assimilate even the most complex concepts. Seleznev is able to explain technical details in simple language, which makes his book an ideal textbook. Readers familiar with his other works will appreciate his ability to combine theory and practice, as well as his deep understanding of the subject. If you are looking for literature on the topics of electricity metering, metering, or just want to expand your knowledge in the field of electrical engineering, the book “Counters for reactive energy metering and methods of their verification” will be a real find for you. It will not only enrich your knowledge, but also help you become more competent in your field. Do not miss the opportunity to get acquainted with this valuable work, which opens the door to the world of modern technologies of energy accounting and resource management.