The book "Laboratory and independent work on three-phase chains of sinusoidal current . Textbook" edited by Y. A. Comey is an indispensable resource for students, graduate students and teachers involved in electrical engineering and electric power. This tutorial contains practical tasks and laboratory work that will help readers to better understand the principles of three-phase chains and their application in real life. Three-phase systems are the backbone of most modern power grids, and understanding their operation is critical for future engineers and energy professionals. The book offers readers not only theoretical knowledge, but also practical skills that can be applied in laboratory conditions. Each work is accompanied by detailed instructions, which allows even beginners to confidently cope with tasks. Who can like this manual? First of all, it will be useful for students of technical universities studying electrical engineering, as well as for those who are preparing for exams or want to deepen their knowledge in the field of electrical circuits . Teachers will find in the book excellent material for laboratory classes, and practicing engineers will be able to use it as a reference for solving specific problems in their professional activities. The topics raised in the book cover a wide range of issues related to three-phase chains: from the foundations of theory to complex calculations and analysis. Readers will be able to learn about the principles of operation of transformers, generators and other electric machines, as well as methods of measurement and analysis of circuit parameters. In addition, the manual addresses safety issues when working with electrical installations, which is especially relevant for students and novice professionals. The style of the author and the team of authors is distinguished by the clarity and accessibility of the presentation . They strive to make complex technical concepts understandable even for those who are just beginning their journey in electrical engineering. Yu. A. Comey, as an editor, is known for his attention to detail and commitment to quality, which makes this guide not only informative, but also enjoyable to read. If you are looking for books on electrical engineering, such as “Laboratory and independent work on three-phase chains of sinusoidal current”, pay attention to such works as “Electrical chains” and . Caps or "Electrical Machines" A. In. Baranova . These books will also help you deepen your knowledge and skills in electrical engineering. In conclusion, “Laboratory and independent work on three-phase chains of sinusoidal current” is not just a textbook, but a whole world in which readers are immersed, seeking to master the complex but fascinating aspects of electrical circuits. This is a book that will become your reliable companion in the world of electrical engineering, opening the door to new knowledge and opportunities. Do not miss the chance to take a step towards professional growth and confidence in your knowledge!