The book "Energy-saving AC electric drive systems with frequency control for mechanisms with fan static" by B. N. Meshcheryakova is a deep and comprehensive study devoted to modern technologies in the field of electric drives. This work will become an indispensable source of knowledge for engineers, students of technical universities, as well as anyone interested in optimizing and improving the efficiency of energy systems. In his book, Meshcheryakov examines current problems related to energy saving and efficiency of electric drives, which play a key role in modern industrial and domestic systems. The author focuses on the use of frequency control, which allows to significantly reduce electricity consumption and increase the service life of equipment. This topic is particularly important in the context of global energy price increases and the need to transition to more sustainable and environmentally friendly technologies. The book will be of interest not only to specialists in the field of electrical engineering, but also to students who seek to deepen their knowledge of modern methods of electric drive management. Meshcheryakov shares his observations and conclusions based on many years of experience in this area, which makes the material accessible and understandable to a wide audience. Readers interested in automation, robotics and energy conservation will find many useful ideas and practical recommendations in this book. The topics raised in the book cover a wide range of issues: from the theoretical foundations of electric drives to the practical aspects of their application in various industries. Meshcheryakov pays special attention to the analysis of existing systems and offers innovative solutions that can be implemented in real practice. The book is full of examples and illustrations, which makes it not only informative, but also visually attractive. The author’s style is distinguished by clarity and logical presentation . Meshcheryakov is able to explain complex technical concepts, which allows the reader to easily absorb material. His previous work was also noted for its high level of scientific and practical significance, which confirms his status as an expert in the field of electrical engineering and automation. The book "Energy-saving AC electric drive systems with frequency control for mechanisms with fan static" is no exception and continues the tradition of his previous publications. This book will be useful not only to professionals, but also to those who are simply interested in modern technologies and their impact on our lives. Given the rapid development of technology and the need to find new solutions to improve efficiency, this publication will be an excellent help for everyone who wants to be aware of the latest trends in energy saving and electric drive management. If you are looking for information on how to optimize energy consumption in your projects or want to deepen your knowledge in the field of frequency control, book B. N. He will be your trusted helper. Do not miss the opportunity to get acquainted with this valuable work, which will open up new horizons for you in the world of electrical engineering and energy saving.