Manual for the Design of Internal Combustion Engines . H. 3: The method of performing strength calculations and development" by Alexei Alekseevich is an indispensable source of knowledge for students, graduate students and specialists in the field of mechanical engineering, especially those who are interested in the design and analysis of internal combustion engines . In the third part of this tutorial, the author examines in detail the techniques that are the basis for performing strength calculations, which makes it not only a theoretical, but also a practical guide. The book begins with the basics of strength calculations, where Alexey Alekseevich explains the key concepts and principles on which engine design is based. He emphasizes the importance of these calculations to ensure the reliability and durability of engines, which is a critical aspect in modern mechanical engineering. The reader is immersed in the world of mechanics, where every detail, every element of design plays its unique role. For whom is this book intended? First of all, it will be of interest to students of technical universities studying mechanical engineering and automotive engineering . But they will not only find in it useful knowledge. Specialists working in the field of design and development of engines will be able to update their knowledge and get acquainted with modern methods of calculations The book will also be useful to teachers who are looking for high-quality materials for the preparation of lectures and practical exercises. The topics raised in the book cover a wide range of issues related to the strength of materials, their behavior under load, and methods of analysis. Alexey Alekseevich not only shares theoretical foundations, but also offers practical examples, which allows the reader to better assimilate the material and apply it in practice. This book is not just a textbook, but a real find for those who seek a deeper understanding of mechanical processes and their impact on the operation of engines. The author's style is distinguished by clarity and accessibility of presentation, which allows even complex technical aspects to be perceived easily and with interest. Alexey Alekseevich is an experienced teacher and practitioner, which is reflected in his approach to writing . It not only shares knowledge, but also inspires readers to further research and experiments in engine design. His previous works, such as "Basics of Internal Combustion Engine Design" and "Engine Theory and Practice", have already won recognition among students and professionals. The book also touches on topical topics such as sustainability and environmental aspects of design, making it particularly valuable in the face of contemporary challenges. Readers will be able to learn about new materials and technologies that help create more efficient and environmentally friendly engines. If you are looking for a tutorial that will help you not only to master the theory, but also to put it into practice, “Training manual on the design of internal combustion engines . H. 3: The method of performing strength calculations and development "will become your reliable satellite. This book is not just a set of formulas and calculations, but a whole world of possibilities for those who want to become a professional in the field of engine design. Do not miss the chance to immerse yourself in the fascinating process of study and development, which will open up new horizons in mechanical engineering!