The book "Underground structures of hydroelectric power plants", written by outstanding specialists in the field of hydropower L. Cooperman, W. M. Bridge, V. F. Illushin and G. I. Hevirz is a unique work that immerses the reader in the complex and fascinating world of underground structures used in hydroelectric power plants. This edition will be a real find for engineers, students and anyone interested in modern technologies in the field of energy. The author’s team, consisting of practitioners and theorists, shares their knowledge, experience and the latest achievements in the design and construction of underground structures. The book covers a wide range of topics, ranging from the basics of design to the operation and modernization of existing facilities. The reader will be able to learn about the different types of underground structures, their functions and importance for the effective operation of hydroelectric power plants. One of the key themes of the book is the safety of underground structures. The authors examine in detail the methods of risk assessment and ways to prevent emergency situations, which makes the publication especially relevant in the light of modern challenges associated with climate change and increasing the load on energy systems. In addition, the book addresses issues of sustainable development and ecology, emphasizing the importance of harmonious coexistence of technology and nature. Who can like this book? First of all, it will be of interest to students and graduate students of technical universities studying hydropower, construction technologies and related disciplines . Engineers and designers working in the field of energy will find in it useful recommendations and practical advice that will help in their professional activities. The book can also attract the attention of researchers and scientists involved in sustainable development and innovative technologies in the energy sector. The style of the authors is distinguished by the clarity and accessibility of the presentation of complex technical aspects, which makes the material understandable even for those who do not have deep knowledge in this field. Each chapter of the book is filled with examples from practice, illustrations and diagrams, which allows the reader to better assimilate the material presented. The authors strive not only to convey knowledge, but also to inspire the reader to new ideas and solutions. "Underground structures of hydroelectric power plants" is not just a textbook, but a real encyclopedia, which contains the best practices and the latest achievements in the field of design and operation of underground structures. The book will be an indispensable assistant for anyone who wants to understand the intricacies of hydropower and contribute to the development of this important industry. If you are looking for information about hydroelectric power plants, underground structures, construction and design in the energy sector, then this publication must be in your library. Do not miss the opportunity to get acquainted with the work of authors who are real masters of their craft . This book is your key to understanding the complex processes behind the creation and operation of hydropower plants, and it will help you become part of the future of energy.