The book "Fundamentals of the Theory of Conditioning" by B. P. Gavrilkina is a fascinating and deep immersion in the world of air conditioning, which will be an indispensable tool for both students and practitioners in the field of climate technologies. In this work, the author shares his knowledge and experience, offering readers not only theoretical foundations, but also practical recommendations for the design and operation of air conditioning systems. From the first pages of the book, the reader finds himself at the center of a discussion of the key concepts and principles underlying air conditioning. Gavrilkin carefully explains how various systems, from the simplest to the most complex, work, and how to use them correctly depending on the operating conditions. Reading this book, you will be able to understand how to choose the right equipment, how to calculate the necessary parameters and what factors affect the efficiency of air conditioning systems. The book will be especially interesting for students of technical universities studying in the areas of "Heat engineering", "Energy" and "Climate technologies" .. However, it will also attract the attention of engineers and designers working in the field of HVAC (heating, ventilation and air conditioning), as well as anyone who wants to understand modern climate systems. If you want to learn not only to understand, but also to put theory into practice, this book will become your reliable companion. The topics raised in the book cover a wide range of issues related to air conditioning. Gavrilkin touches on such important aspects as thermodynamics, heat exchange, and the influence of various factors on indoor air quality. It also focuses on current trends in energy conservation and ecology, making the book particularly relevant in light of global climate change and growing energy efficiency requirements. The author's style is distinguished by clarity and accessibility of presentation, which allows the reader to easily assimilate even the most complex concepts. Gavrilkin uses many illustrations and examples from practice, which makes the material more visual and understandable. His approach to learning is based on a combination of theory and practice, which allows the reader not only to remember information, but also to apply it in real conditions. If you are familiar with other works in . P. Gavrilkina, then you know that he always strives to convey to the reader the most relevant and important knowledge . His previous books, such as “Heat Calculations” and “Climate Installations”, have also received recognition among professionals and students. In each of them, the author demonstrates his passion for the topic and the desire to share knowledge, which makes his works valuable sources of information. “Fundamentals of air conditioning theory” is not just a textbook, but a real encyclopedia of knowledge for anyone interested in air conditioning. It will help you not only to master the theory, but also to learn to apply it in practice, which will make your work more efficient and professional. If you want to become an expert in climate technology or just want to expand your knowledge, this book will be an excellent choice. Do not miss the opportunity to immerse yourself in the world of air conditioning with B. P. Gavrilkin and discover new horizons in this fascinating and important area!