1161 Theory of Machines and Mechanisms . Mechanical transmissions: training. The manual by Sergey Mikhailovich Gorbatyuk is an indispensable source of knowledge for students, graduate students and anyone interested in mechanics and engineering. In this tutorial, the author reveals in depth and accessible complex concepts related to the theory of machines and mechanisms, as well as mechanical transmissions, which play a key role in modern mechanical engineering. From the first pages of the book, the reader plunges into the world of mechanics, where every concept, every formula and every explanation serve to create a solid knowledge base. Humpback not only outlines the theoretical aspects, but also supports them with practical examples, which makes the material more understandable and applicable. The book covers a wide range of topics, including the basics of kinematics and dynamics of mechanisms, types of gears and their characteristics, as well as methods of calculation and design. The reader will be able to learn about different types of gears, such as gears, belts and chains, and understand how they affect the efficiency of machines. This book will be especially useful for engineering students, engineers and anyone seeking to deepen their knowledge in the field of mechanics. It is suitable both for those who are just starting their way in studying machine theory, and for more experienced specialists who want to refresh their knowledge or understand new approaches and technologies. If you are passionate about engineering, mechanics or just want to expand your horizons in this area, this guide will become your reliable assistant. The topics raised in the book cover not only technical aspects, but also philosophical reflections on the role of machines in our lives. Horbatyuk emphasizes how mechanical transmissions affect the performance and efficiency of various processes, which makes his work relevant in the context of modern production, where optimization and innovation are key success factors. The book also addresses environmental and sustainability issues, making it particularly important for future engineers who will develop technologies with environmental aspects in mind. Gorbatyuk's style is distinguished by clarity and logical presentation. He is able to explain complex things in simple language, which makes his work available to a wide audience. The author is a well-known specialist in the field of mechanics and has many publications and teaching aids that have been recognized both in Russia and abroad. His experience and in-depth knowledge in the theory of machines and mechanisms make this manual not only a teaching material, but also a real reference for practicing engineers. If you are looking for a high-quality tutorial on the theory of machines and mechanisms, which will help you not only to master the theoretical foundations, but also to apply them in practice, then “No. 1161 Theory of Machines and Mechanisms . Mechanical transmissions: training. Help is exactly what you need......... [ This book will be your reliable companion in the world of mechanics, opening up new horizons of knowledge and opportunities for you. Do not miss the chance to deepen your knowledge and become a real professional in your field!