The book "Theoretical foundations of heat engineering: technical thermodynamics and heat transfer" by B. In. Mamaeva is a deep and systematic study that immerses the reader in the world of thermodynamics and heat transfer. This is not just a textbook, but a real encyclopedia of knowledge that will be of interest to both students of technical specialties and practicing engineers who want to update their knowledge or understand the intricacies of heat engineering. The book explores the key concepts and principles underlying thermodynamics and heat transfer. The author, with a wealth of experience in the field of engineering sciences, shares his knowledge, explaining complex topics in an accessible language. It covers such important aspects as the laws of thermodynamics, heat transfer processes, as well as various methods for calculating thermal processes. Mamaev not only expounds the theory, but also reinforces it with practical examples, which makes the material more understandable and applicable in real life. Who can like this book? First of all, it will be useful for students studying in specialties related to energy, engineering and construction . But not only them! Engineers working in the field of heat engineering will also find in it many useful tips and recommendations . In addition, the book may be of interest to anyone who wants to expand their knowledge in the field of physics and engineering, as well as those who seek to understand how heating, cooling and other thermal engineering devices work. The topics raised in the book are of great importance in today's world, where energy efficiency and reducing heat loss are becoming increasingly relevant. Mamaev emphasizes the importance of sustainable development and rational use of resources, which makes his work especially valuable in the face of global environmental challenges. The reader will be able not only to master the theoretical foundations, but also to understand how to apply this knowledge to solve real problems. The author’s style is distinguished by clarity and logical presentation . In. In. Mamaev is not only a theorist, but also a practitioner, which allows him to focus on the applicability of knowledge. His previous works, such as "Fundamentals of Heat Engineering" and "Thermodynamics for Engineers", have also been recognized for their accessibility and practical focus. In this book, he continues to develop his concept, offering readers not just a set of formulas, but a holistic understanding of the processes occurring in thermal systems. “Theoretical foundations of heat engineering” is not just a textbook, but a real find for anyone who wants to deepen their knowledge in the field of thermodynamics and heat transfer. With the help of this book, the reader will be able not only to understand complex scientific concepts, but also to learn how to apply them in practice, which makes it an indispensable resource for students and professionals. If you are looking for quality thermal engineering literature that combines theory and practice, then this book will be an excellent choice. Do not miss the opportunity to expand your horizons and immerse yourself in the fascinating world of thermal processes with B. In. Mamaev!