The book "Calculation of the thermal scheme of utilization of combined cycle plants" by Sergey Alexandrovich Kachan is a unique work that immerses the reader in the world of modern technologies and energy. In the context of global climate change and the need to optimize energy processes, this publication becomes an indispensable assistant for engineers, students and anyone interested in energy efficiency and sustainable development. The book is devoted to the calculation of thermal schemes of reclamation steam-gas plants, which are an important element in the energy supply system. These units allow efficient use of heat released during operation of gas turbines, which significantly increases the overall efficiency of energy systems. The author examines in detail the methods and approaches that will help the reader not only to understand the principles of such installations, but also to learn how to carry out the calculations necessary for their design and optimization. Sergey Aleksandrovich Kachan is a well-known specialist in the field of energy, who has not only extensive experience in this field, but also many publications devoted to the issues of heat engineering and energy systems. His writing style is clear and accessible, which allows even those who do not have deep knowledge in the field of engineering to easily assimilate complex concepts. The book uses visual examples and graphics, which makes the material more understandable and interesting. “Calculation of the thermal scheme of utilization steam-gas plants” will be especially useful for students of technical universities, graduate students and practicing engineers working in the field of energy and heat engineering . The book may also be of interest to specialists involved in the design and operation of power plants, as well as to all who seek to improve their skills in this field. The topics raised in the book cover a wide range of issues, ranging from the basics of heat engineering to modern methods of optimizing energy processes. Kachan focuses on the importance of heat utilization and its role in reducing the environmental burden. In the face of global challenges, such as climate change and the depletion of natural resources, the efficient use of energy is becoming not just relevant, but vital. The book also touches on the economic feasibility of the introduction of combined cycle plants, which makes it an important tool for decision-making in the field of energy policy. Kachan not only shares his knowledge, but also invites readers to think about the future of energy, about how technology can help solve pressing problems. If you are looking for literature that combines in-depth knowledge, practical recommendations and current topics, then “Calculation of the thermal scheme of reclamation steam-gas plants” will be an excellent choice. This book is not just a tutorial, but a real find for those who want to be at the forefront of energy technologies and strive to create a more sustainable and efficient future. Thus, if you are interested in such requests as “heat utilization”, “steam-gas plants”, “energy efficiency”, or you are looking for literature on heat engineering and modern energy technologies, this publication should definitely take a worthy place in your library.