The book "Sources and systems of heat supply of enterprises" edited by E. P. Hagleeva is an indispensable work for specialists in the field of energy, engineering and management of thermal energy systems . This voluminous and detailed work, created by a team of authors, offers readers a deep immersion in the theory and practice of heat supply, covering a wide range of topics, from design to operation of heat supply systems. The main purpose of the book is to provide readers with a complete understanding of heat supply sources, their classification, operating principles and modern technologies used in this field. The book examines both traditional and alternative energy sources, making it relevant for anyone interested in modern approaches to heat supply. The authors share their experience and knowledge, which allows readers not only to master the theoretical aspects, but also to apply them in practice. This book will be of interest not only to professional engineers and power engineers, but also to students of technical universities, graduate students and anyone who wants to deepen their knowledge in the field of heat supply. It will be a useful tool for those who work in the housing and utilities sector, as well as for managers of enterprises seeking to optimize their heat supply systems and reduce energy costs. The topics raised in the book cover many aspects, including the choice of heat sources, the design and operation of heat supply systems, as well as energy saving and environmental issues. The authors emphasize the importance of integrating new technologies and automation systems, which becomes especially relevant in today's market, where the efficiency and sustainability of heat supply systems play a key role. The style of presentation of the book is distinguished by clarity and accessibility .. The authors use many illustrations, diagrams and tables, which makes the material more understandable and illustrative. This approach allows readers to easily assimilate complex technical concepts and apply them in their professional activities. The book also includes practical examples and case studies, which makes it especially valuable for those looking for real solutions to their problems. E. P. Khagleev, as one of the leading experts in the field of heat supply, has many publications and scientific works behind him. His experience and knowledge, as well as the contributions of other authors, make this book an important resource for anyone interested in heating and energy efficiency. Other well-known works of Khagleev include research in the field of heat engineering and energy saving, which are also in great demand among specialists. The book “Sources and systems of heat supply of enterprises” is not just a textbook, but a real encyclopedia of knowledge that will help readers understand the complex issues of heat supply and find optimal solutions for their enterprises. If you are looking for information about modern heating systems, want to improve your skills or just interested in this topic, this publication will be your reliable assistant and source of inspiration. In conclusion, Sources and Systems of Heat Supply Enterprises is a book that deserves the attention of anyone who aspires to professional growth in the field of energy. It opens up new horizons and offers readers relevant knowledge that will help them become more competitive in the labor market. Do not miss the opportunity to get acquainted with this important work and expand your horizons in the field of heat supply!