The book Cycles of Gas Turbine Plants and Internal Combustion Piston Engines, written by the team of authors, is a unique and in-depth study devoted to one of the most relevant areas in the field of energy and mechanical engineering. This publication will be a real treasure for students, graduate students, engineers and anyone interested in modern technologies and principles of engines used in aviation, energy and automotive industries. The book discusses the main cycles on which gas turbine plants and piston internal combustion engines are based. The authors analyze in detail the thermodynamic processes occurring in these systems, which allows the reader to understand more deeply how the engines that we use every day work. The book covers both theoretical aspects and practical applications, making it useful for both theorists and practitioners. One of the key topics raised in the book is the performance of different types of engines and their impact on the environment. In the context of global climate change and the need to switch to more environmentally friendly technologies, understanding of the principles of operation of gas turbine plants and piston engines becomes especially relevant. The authors discuss current trends in the development of new technologies aimed at reducing emissions and improving overall efficiency. The book will be of interest not only to specialists in the field of mechanical engineering, but also to a wide range of readers interested in energy and innovation. Students of technical specialties will find useful information for their training courses in it, and practicing engineers will be able to update their knowledge about modern achievements in the field of engine building. In addition, the book will be useful to those working in the field of ecology and sustainable development, as it raises important questions regarding the impact of technology on nature. The style of the authors is distinguished by clarity and accessibility of presentation, which makes complex technical concepts understandable even for an unprepared reader. The book is replete with illustrations, graphs and diagrams that help visualize the processes described and make the material more visual. This is especially important for those who prefer visual perception of information. The team of authors working on this publication consists of recognized experts in the field of energy and engineering, which adds additional value to the content of the book. Their experience and knowledge allow us to create high-quality and relevant material that will be interesting and useful for both professionals and students. If you are looking for a book that will help you better understand the principles of gas turbine plants and piston internal combustion engines, as well as their role in the modern world, then the Cycles of gas turbine plants and piston internal combustion engines will be an excellent choice. This publication will not only expand your knowledge, but also inspire new ideas and research in the field of technology and sustainable development. Do not miss the opportunity to immerse yourself in the world of modern engines and learn more about them!