The book "Thermodynamics and heat transfer in the technological processes of the oil and gas industry", written by a team of authors under the direction of A. F. Kalinin is a unique work that combines the theoretical foundations and practical aspects of thermodynamics and heat transfer applied in one of the most important and complex industries of our time. This publication will become an indispensable assistant for students, graduate students, engineers and specialists working in the oil and gas sector, as well as for anyone interested in energy efficiency and process optimization. The book covers a wide range of topics, ranging from the basics of thermodynamics to complex calculations of heat transfer in various conditions. The authors consider in detail the laws of thermodynamics, the principles of operation of thermal machines and installations, as well as methods for calculating heat transfer in pipelines, heat exchangers and other devices used in the oil and gas industry. Each section of the book is filled with examples from real practice, which allows the reader not only to assimilate theoretical knowledge, but also to apply them in specific situations. One of the key topics raised in the book is the importance of thermodynamic processes to improve production efficiency and reduce costs. In the context of growing competition in the global oil and gas market, process optimization is becoming an integral part of the successful activities of companies. The authors focus on modern methods and technologies that help minimize energy losses and increase productivity, which makes the book especially relevant for professionals in this field. The book will be of interest not only to specialists, but also to students of technical universities studying oil and gas technologies, thermodynamics and heat transfer. It will help to better understand the complex processes taking place in industry and prepare future engineers for the real challenges they will face in practice. In addition, the book may be useful to researchers involved in the development of new technologies and methods in the field of energy. The style of the authors is distinguished by clarity and accessibility of presentation, which makes complex scientific concepts understandable even for those who are just beginning to get acquainted with this topic. Each section of the book is logically structured, which makes it easy to find the necessary information and delve into the study of certain aspects of thermodynamics and heat transfer. The authors use many illustrations, graphs and tables that help to visualize and better understand the material presented. The book "Thermodynamics and heat transfer in the technological processes of the oil and gas industry" becomes an important contribution to the literature on engineering sciences and is a necessary resource for all who seek professional growth in the field of oil and gas industry. It opens up new horizons of knowledge for the reader and inspires the search for innovative solutions to complex technological problems. If you are looking for information about thermodynamics, heat transfer, the oil and gas industry, and want to deepen your knowledge in these areas, this book will be a real find for you. Do not miss the opportunity to get acquainted with this outstanding work, which will help you become an expert in your field and reach new heights in your career.