The Heat Supply . Theoretical substantiation of the hydraulic regime of centralized water systems” under the authorship of Vladimir Petrovich Gorshenin and a team of authors is an important work. which will become an indispensable source of knowledge for specialists in the field of heat supply , Engineers , Students and all , who is interested in modern technologies in energy and construction. In this work, the authors are deeply immersed in the theoretical aspects of the hydraulic mode of district heating water systems, which makes the book relevant for both practitioners and researchers. It examines the key principles and patterns that underlie the design and operation of heat supply systems. The reader will be able to learn about various methods of calculating, analyzing and optimizing the operation of water systems, which is especially important in the conditions of modern energy saving and increasing the efficiency of resource use. The book will be of interest not only to professional engineers and designers, but also to students of technical universities studying disciplines related to heat engineering and energy. It can also attract the attention of researchers involved in sustainable development and environmental technologies, as it raises topics related to the impact of modern heat supply systems on the environment and the possibility of optimizing them. One of the key topics addressed in the book is the hydraulic mode, which plays a central role in ensuring efficient heat supply. The authors explain in detail how different parameters, such as pressure, temperature, and flow rate, affect the overall efficiency of the system. They also discuss modern approaches to modeling and calculation, which makes the material particularly relevant for those seeking to apply the latest technology in their practice. The style of the authors is distinguished by clarity and accessibility, which allows even complex concepts to be understandable to a wide audience. This makes the book not only a tutorial, but also a practical guide that can be used in everyday work. Readers will appreciate attention to detail and practical examples that enrich the theoretical material and make it more visual. Vladimir Petrovich Gorshenin is a well-known specialist in the field of heat supply and energy, the author of many scientific publications and textbooks . His work has always been distinguished by a high level of scientific validity and practical orientation. The book "Heat Supply" is no exception, it continues the traditions laid down in his previous studies, and is a logical continuation of his scientific activities. If you are looking for literature on the topics of heat supply, hydraulic systems, design and operation of energy systems, then this book will be a real find for you. It will not only expand your knowledge, but also help you better understand the complex processes occurring in district heating systems. Readers interested in energy efficiency, sustainable development and new technologies in the field of energy will find in this work many useful ideas and solutions. Do not miss the opportunity to immerse yourself in the world of heat supply with the book “Heat Supply . Theoretical substantiation of the hydraulic regime of centralized water systems” from Vladimir Petrovich Gorshenin and his colleagues . This is not just a book, but a whole source of knowledge that will help you become an expert in your field.