The book “Modeling of internal (curtain) cooling of low-thrust rocket engine on environmentally friendly gaseous components” by Bogachev is a fascinating and in-depth study that immerses the reader in the world of modern rocket technology. This work will be a real discovery for those who are interested in aerospace engineering, environmentally friendly technologies and innovations in the field of rocket engines. In his book, the author examines in detail the process of modeling the cooling systems of rocket engines, which is one of the key tasks in the development of highly efficient and safe propulsion systems. With the ever-increasing demands for ecology and sustainable development, the use of environmentally friendly gaseous components is becoming not just a fashion trend, but a necessity. Bogachev focuses on how these components can not only reduce the negative impact on the environment, but also increase the efficiency of engines. The book will be of interest to both undergraduate and graduate students, as well as practicing engineers and researchers in the field of rocketry and aerospace technology. It is suitable for those who seek to expand their knowledge of modern methods of modeling and optimization of motor systems, as well as those who are interested in the environmental aspects of technology. The age category of readers varies from 18 to 50 years, including both young people and more experienced professionals who want to update their knowledge. The topics raised in the book cover a wide range of issues, from thermodynamics and heat transfer to the application of computer modeling to solve complex engineering problems. The author shares his experience and knowledge, which makes the material accessible to understanding, even if the reader is not an expert in this field. Readers will be able to learn about the latest approaches to designing cooling systems, as well as how to choose and combine components correctly to achieve maximum efficiency. Bogachev's writing style is clear and logical, which makes it easy to follow the author's thoughts He masterfully combines theoretical aspects with practical examples, which makes the book not only informative, but also fascinating. If you are familiar with his other works, such as “Heat processes in rocket engines” or “Modern technologies in aerospace engineering”, you know that the author always strives for accuracy and depth of analysis. The book “Modeling the internal (curtain) cooling of a low-thrust rocket engine on environmentally friendly gaseous components” is not just a training manual, but a real find for everyone who wants to be at the forefront of technology. It inspires new ideas and solutions, emphasizing the importance of environmental responsibility in engineering. Readers interested in topics such as sustainable development, innovative technologies and the future of rocketry will find here a lot of useful information. In conclusion, if you want to deepen your knowledge of rocket engines and understand how modern technologies can be combined with environmental requirements, this book will become an indispensable source of information and inspiration for you. Don’t miss the chance to learn more about how modeling and innovation can change the future of the aerospace industry!