The book "Calculation of thermal, gas-dynamic and mechanical parameters of motor-tractor engines" by Mikhail Nikolayevich Lozhkin is an indispensable work for everyone who is interested in engineering, mechanics and, in particular, engine design. In this edition, the author is deeply immersed in the complex processes occurring in the motor-tractor engines, and offers the reader a unique view on their calculation and optimization. Lozhkin, known for his scientific works and practical experience in the field of engine building, shares with readers not only theoretical knowledge, but also practical recommendations that can be useful to both students and experienced specialists. The book will be especially interesting for those who study or work in the field of mechanical engineering, automotive engineering and energy. It will be a valuable resource for technical students, graduate students, as well as engineers and designers seeking to deepen their knowledge in the field of heat engineering and dynamics. The book focuses on key aspects related to thermal, gas-dynamic and mechanical processes in engines. Lozhkin examines in detail how these parameters affect the performance and efficiency of motor-tractor engines. The reader will be able to learn about modern methods of calculation, as well as how to correctly interpret the results, which is an important aspect for any engineer. The author focuses on the relationship between different parameters, which allows you to better understand how to optimize engine performance to achieve maximum efficiency. The topics raised in the book cover a wide range of issues, from the basics of thermodynamics to complex calculations relating to gas dynamics. Lozhkin not only explains the theory, but also offers practical examples that make the material accessible and understandable. It also discusses the current challenges and challenges faced by engineers in today's world, including environmental issues and fuel economy. The book raises important topics such as sustainable development and innovative technologies, which makes it especially relevant in the modern world, where environmental issues and efficiency are becoming increasingly important. Lozhkin's style is distinguished by clarity and logical presentation, which allows the reader to easily assimilate complex concepts. His previous works, such as Fundamentals of Internal Combustion Engine Theory and Dynamics and Motor Vehicle Management, have also been recognized for their accessibility and practical focus. In this book, the author continues his tradition, making complex technical aspects available to a wide audience. The book "Calculation of thermal, gas-dynamic and mechanical parameters of motor-tractor engines" will become not only a textbook, but also a reference book for engineers and students seeking a deep understanding of the operation of engines. It will also be useful for those who are interested in new technologies in the field of mechanical engineering and want to be aware of the latest achievements in this field. If you are looking for literature that will help you understand the complex mechanisms of autotractor engines, or want to deepen your knowledge in the field of heat engineering and dynamics, the book by Mikhail Nikolaevich Lozhkin will be a real find for you. Do not miss the opportunity to get acquainted with this fascinating and useful publication, which will open up new horizons in the world of mechanics and engineering.