Theoretical Foundations of Electrical Engineering . Calculation of a nonlinear magnetic circuit with the use of computers” under the authorship of a team of authors, including a well-known specialist in the field of electrical engineering E. C. Kineva, is a unique publication that will become a reference book for students, graduate students and practicing engineers. This work immerses the reader in the world of electrical engineering, revealing complex theoretical concepts and their practical application. The book focuses on the calculation of nonlinear magnetic circuits, which is a topical topic in modern electrical equipment. Nonlinear elements, such as transformers and magnetic amplifiers, require a special approach in calculations, and this is what makes the book an indispensable tool for those who want to deepen their knowledge in this field. The reader will be able to get acquainted with the methods of modeling and analysis, which allow effectively solving problems related to the design and optimization of electrical systems. The book will be of interest not only to students of technical universities, but also to professionals working in the field of electrical engineering and related disciplines. If you are designing electrical machines, transformers or control systems, this publication will be a valuable resource for you. It will also be useful for those who are interested in modern technologies in the field of automation and electronics. The topics raised in the book cover a wide range of issues, ranging from the basics of the theory of magnetic circuits to modern methods of numerical modeling. Particular attention is paid to practical examples and tasks, which allows the reader not only to assimilate the theoretical material, but also to apply it in practice. The book demonstrates how modern computing technologies can be used to solve complex problems, which makes it especially relevant in the context of the rapid development of technology. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes it easy to digest even the most complex topics. The book uses graphs, diagrams, and examples to help visualize the material and make the learning process more engaging. The team of authors, consisting of experienced teachers and practitioners, shares their experience and knowledge, which gives the book special value. If you are interested in such works as "Electrical Machines" M. and . Petrov or "Fundamentals of Electrical Engineering" A. N. Kostyukova, then "The theoretical foundations of electrical engineering . Calculation of a nonlinear magnetic circuit with the use of a computer” will be a logical continuation for you to study this fascinating area. The book will not only expand your knowledge, but also help you become a more confident specialist in your profession. In conclusion, this edition is not just a textbook, but a whole world of knowledge that will open up new horizons in electrical engineering. It will become a reliable assistant on your way to professional growth and will help you cope with any challenges that may arise in the course of work. Do not miss the opportunity to deepen your knowledge and skills, enrich your library with this important book, which, of course, deserves your attention.