The book "The Theory of Internal Combustion Engines", written by a team of authors, is a fundamental study that immerses the reader in the world of mechanics and physics, which is behind one of the most significant inventions of mankind - the internal combustion engine. This publication will become a real treasure for students of technical universities, engineers, as well as anyone interested in automotive topics and the history of technology development. The book discusses in detail the basic principles of internal combustion engines, their design and various types, including gasoline and diesel engines. The authors not only explain how these mechanisms work, but also delve deeper into the physical and chemical processes occurring within them. The reader will be able to learn about thermodynamic cycles, such as the Otto cycle and the Diesel cycle, as well as about modern achievements in improving efficiency and reducing emissions of harmful substances. This makes the book relevant not only for fans of technology, but also for those who care about the state of the environment. The book will be of interest not only to students and specialists, but also to a wide range of readers who want to better understand how cars work and what technologies are behind their work. If you are passionate about cars, motorcycles or just want to expand your knowledge of mechanics, this publication will be an indispensable source of information for you. Even if you are not an expert in the field, accessible language and clear explanations will help you easily learn complex concepts. The topics raised in the book cover not only technical aspects, but also the historical context of the development of internal combustion engines. The authors talk about the first attempts to create an engine, about key figures in this area and how technology has evolved over time. This allows the reader not only to understand how engines work, but also to realize the impact they have had on society and the economy. The style of the authors is distinguished by clarity and logical presentation, which makes the material accessible to perception. Each section of the book is accompanied by illustrations and diagrams that help to visualize the described processes. This is especially important for the technical literature, where understanding the mechanisms often requires illustrative examples. The theory of internal combustion engines may also be of interest to those who follow current trends in the automotive industry, including the transition to electric and hybrid technologies. The authors raise questions about the future of internal combustion engines in the context of global change and environmental challenges, making this work relevant for discussion today. If you are looking for books on the subject of engines, pay attention to such works as "Internal Combustion Engines" A. A. Lebedev or "Automotive Engines" B. and . Kostyukova . These books can also complement your knowledge and deepen your understanding of the topic. In conclusion, “The Theory of Internal Combustion Engines” is not just a textbook, but a real encyclopedia that will open up the world of technology and engineering before you. It will become a reliable assistant for both students and professionals, as well as for anyone who wants to understand the intricacies of the engines. Do not miss the opportunity to immerse yourself in the fascinating world of mechanics and discover a lot of new knowledge!