"Electrical Machines ." Part 3 . Synchronous Machines . DC machines" is a fundamental work that represents an important part of extensive research in electrical engineering and power engineering. The authors gathered in this team are recognized experts in their field, and their joint efforts allowed to create a work that will be useful to both students and practicing engineers. This book immerses the reader in the world of synchronous machines and DC machines, revealing their principles of operation, design and application. Synchronous machines are known to play a key role in modern power systems, ensuring the stability and efficiency of power grids. At the same time, DC machines remain relevant due to their simplicity and reliability, which makes them indispensable in a number of industrial applications. The authors examine in detail both the theoretical aspects and the practical applications of these machines, making the book particularly valuable for those who want to understand electrical machines more deeply and their functioning. The book will be of interest not only to technical students studying electrical engineering, but also to professionals working in the field of energy, automation and mechanical engineering. Engineers involved in the design and operation of electric machines will find here a lot of useful information that will help them in solving practical problems. The book can also attract the attention of teachers and researchers who want to expand their knowledge in this area. The topics raised in the book cover a wide range of issues related to synchronous and permanent machines. The authors discuss the principles of operation, design, management methods, as well as modern trends and innovations in this area. Important attention is paid to issues of reliability and efficiency, which makes the book relevant in the light of current challenges facing the energy sector. The reader will be able to get acquainted with the latest achievements in the field of technologies that can significantly improve the characteristics of electric machines. The style of the authors is clear and accessible, which allows even complex technical concepts to be explained in simple and understandable language. This makes the book not only a tutorial, but also a fascinating reading for anyone interested in electrical engineering. The authors use many illustrations and diagrams, which helps to better understand the material and visualize the processes described. "Electrical Machines ." Part 3 . Synchronous Machines . DC Machines” will become an indispensable assistant for all who seek a deep understanding of electric machines. It can serve as a basis for further study of more complex topics in the field of electrical engineering, such as control systems, automation and energy technologies. If you are looking for a quality and in-depth study in the field of electric machines, this book will be an excellent choice. It will not only enrich your knowledge, but also inspire new ideas and projects. In a world where technology is rapidly evolving, understanding the fundamentals of electric machines is becoming increasingly important, and this book will help you stay on the cutting edge.