The book "Reliability of the operation of the on-screen pipes of the steam generator with natural circulation under non-stationary modes" by Katkovskaya K. is an important and in-depth work that attracts the attention not only of specialists in the field of energy and heat engineering, but also of all those who are interested in modern technologies and their application in industry. In this publication, the author explores the key aspects of the reliability of the operation of screen pipes, which play a critical role in the functioning of steam generators, especially in conditions when the operating modes are not stationary. The book covers a wide range of topics, ranging from the theoretical foundations of steam generators and ending with practical recommendations for their operation. Katkovskaya shares her knowledge about how various factors, such as temperature, pressure and flow rate, affect the reliability and efficiency of screen pipes. The reader will be able to learn about the methods of diagnosis and prediction of possible malfunctions, which is especially important for engineers and technicians working in the field of energy. This book will be of interest not only to professional engineers and researchers, but also to students of technical universities who study thermal engineering and energy engineering. It will be an excellent addition to the training materials and will help to deepen the understanding of the processes occurring in steam generators. The book can also attract the attention of researchers dealing with the reliability and efficiency of energy systems. Katkovskaya, as the author, is known for her deep approach to the study of technical issues and her ability to explain complex concepts easily. In her works there is always a clear structure, logic of presentation and a rich scientific apparatus. This book is no exception: it is written in clear and understandable language, which makes it available to a wide audience. The author actively uses graphs, tables and diagrams, which allows the reader to better assimilate the material and visualize complex processes. The topics raised in the book include not only technical aspects, but also issues of safety, cost-effectiveness and sustainable development. In today's world, where resources are becoming more limited and environmental requirements are becoming more stringent, the reliability of steam generators is becoming critical. Katkovskaya focuses on how the right choice of materials and technologies can significantly improve the efficiency of systems, which, in turn, contributes to reducing costs and reducing the negative impact on the environment. The book "Reliability of the on-screen pipes of the steam generator with natural circulation under non-stationary modes" is not just a scientific publication, it is a source of knowledge that can inspire new ideas and solutions in the field of energy. It will become an indispensable assistant for all who seek to improve technology and improve the reliability of energy systems. If you are looking for literature on the reliability of power systems, steam generators or heat engineering, this edition will be an excellent choice. You will be able not only to expand your knowledge, but also to apply the knowledge gained in practice, which will certainly increase your qualifications and competitiveness in the labor market.