Design and Calculation of Engines . H. 3. Calculation of the details of the gas distribution mechanism” by the authors Vladimir Alexandrovich Barmin and Andrei Valentinovich Predko is an indispensable work for everyone who is interested in modern technologies in the field of mechanical engineering and engine building. In this part of the extensive edition, the authors immerse the reader in the subtleties of designing and calculating gas distribution mechanisms (GRM), which are key elements in the work of internal combustion engines. The book is an in-depth analysis that combines theoretical foundations with practical aspects. The reader will be able to learn about the principles of the GM, its design and various types, as well as calculation methods that allow optimizing the engine performance. The authors pay attention to both traditional and innovative approaches, which makes the material relevant for students, graduate students, as well as practicing engineers and designers. This book will be especially interesting for those who are fond of mechanical engineering, automotive and related fields. It is suitable for both students of technical universities studying engines and their components, and for professionals seeking to deepen their knowledge and skills in engine design. If you want to understand how engines work and how to improve their performance, then this publication will be a real guide for you. One of the key topics raised in the book is the importance of accuracy in calculating the details of the GRM. The authors emphasize that even minor design errors can lead to serious consequences in the operation of the engine. They offer the reader various methods and tools for performing calculations, which makes the process more accessible and understandable. The book also touches on the reliability and durability of mechanisms, which is especially true in modern production, where quality requirements are constantly growing. The style of the authors is distinguished by clarity and accessibility of the presentation . They skillfully combine theory with practical examples, which helps the reader to better assimilate the material. Barmin and Predko are known for their other work in engine engineering, and their experience in this field allows them to share valuable knowledge and recommendations. Their previous books, such as "Engine Design and Calculation. H. 1" and "H. 2", have already won recognition among specialists and students, and the third part will not disappoint its readers. Design and Calculation of Engines . H. 3. Calculation of the details of the gas distribution mechanism" is not just a textbook, but a real encyclopedia for everyone who wants to understand the complex world of engines. It will become a reliable assistant in training and professional activities, as well as a source of inspiration for future engineers. If you are looking for quality literature on engine building, this book should definitely take a place on your shelf. Do not miss the opportunity to immerse yourself in the fascinating and complex world of gas distribution mechanisms, which opens up new horizons of knowledge and practical skills. Read, study and apply the knowledge gained in practice!