The book "Thermodynamic basis of cycles of thermal power plants" by Alexey Alexandrovich Alexandrov is an indispensable textbook for students studying thermal power engineering and related directions in universities . In this work, the author with deep understanding and passion plunges into the complex but fascinating world of thermodynamics, revealing to readers the key aspects and principles underlying the operation of thermal power plants. The main purpose of the book is to give readers a clear idea of the thermodynamic cycles that are the basis of the functioning of various energy systems. Alexandrov masterfully explains how these cycles work, what factors influence their efficiency, and how they can be optimized to achieve maximum performance. The reader will find in the book not only theoretical foundations, but also practical examples that will help to better understand how to apply the knowledge gained in real life. The book will be especially useful for students of technical specialties, graduate students and anyone interested in energy, mechanics and engineering. It can also attract the attention of professionals working in the field of design and operation of thermal power plants, as it contains up-to-date data and modern approaches to solving complex problems. Regardless of the level of training, readers will find useful information here that will help them deepen their knowledge and skills. The topics raised in the book cover a wide range of issues, including the fundamentals of thermodynamics, various types of cycles such as Carnot, Renkin, and Otto, as well as their application in modern thermal power systems. Alexandrov not only explains the theory, but also emphasizes the importance of practical application of knowledge. It focuses on environmental aspects and the need for a transition to more sustainable and efficient energy sources, making the book relevant in light of the current challenges facing humanity. The author's style is distinguished by clarity and accessibility, which makes it easy to perceive even the most complex concepts. Alexandrov is an experienced teacher and practitioner, which is reflected in his approach to the presentation of the material. It uses many illustrations, diagrams and examples from real practice, which makes the learning process more fun and productive. Readers familiar with his other works will appreciate the consistency and depth of analysis that are hallmarks of his style. The book "Thermodynamic fundamentals of cycles of thermal power plants" is not just a textbook, but a real find for everyone who seeks to understand and master the basics of thermal energy. It will become a reliable assistant for both students and practitioners who want to improve their skills and expand the horizons of knowledge. If you are looking for high-quality literature on thermodynamics, thermal energy or engineering, this manual should definitely take a worthy place on your shelf. Do not miss the opportunity to immerse yourself in the world of thermodynamics with Alexei Alexandrovich and discover new horizons in the field of thermal energy technologies!