The book “Fundamentals of Hydropower Calculations” by Sergey Nikitin is an indispensable work for all who are interested in hydropower engineering, design and operation of hydroelectric power plants. In this publication, the author shares his deep knowledge and experience in the field of hydropower calculations, which makes him useful for both students and professionals in this field. Sergei Nikitin, a well-known specialist in the field of energy, offers readers not only theoretical calculations, but also practical recommendations based on real examples. His style of presentation is characterized by accessibility and clarity, which allows even those who are just beginning to get acquainted with this topic, it is easy to assimilate complex concepts. The book is written taking into account current trends in hydropower and covers a wide range of issues, ranging from the basics of hydroelectric power plant design to calculations of their efficiency. The main goal of the book is to give readers an understanding of the key aspects of hydropower calculations. The author examines in detail the methods of assessing the resources of water flows, designing hydraulic structures and analyzing their work .. He emphasizes the importance of accurate calculations to ensure the reliability and safety of hydroelectric power plants. Readers will be able to learn about different approaches to power calculation, as well as about modern software tools that facilitate this process. The book will be of interest not only to students and graduate students studying energy disciplines, but also to engineers working in the field of design and operation of hydroelectric power plants. It can also attract the attention of environmentalists and sustainability experts, as hydropower plays an important role in the transition to renewable energy sources. Readers interested in sustainable development and the environment will find useful information in the book on how hydropower can contribute to reducing the carbon footprint and ensuring energy security. The topics raised in the book are relevant and varied. Nikitin discusses not only the technical aspects, but also the economic and environmental consequences of the use of hydropower It emphasizes the importance of an integrated approach to the design and operation of hydropower plants, making the book particularly valuable for professionals seeking to create sustainable and efficient energy systems. The style of Sergei Nikitin can be described as popular science, which makes his books available to a wide audience. He is also the author of other well-known works in the field of energy, which have received recognition both in Russia and abroad. His ability to combine scientific knowledge with practical experience makes his works indispensable for anyone who wants to deepen their knowledge in the field of hydropower. If you are looking for a book that will help you understand the basics of hydropower calculations and give you the tools to successfully work in this area, Sergei Nikitin’s Basics of Hydropower Calculations is exactly what you need. Do not miss the opportunity to learn about the best practices and approaches that will help you become an expert in hydropower . This book will be your reliable assistant on the way to professional success and understanding of complex processes related to one of the most important energy sources of our time.