The book "No2220 Thermodynamic calculations and analysis of phase diagrams of multicomponent systems: studies. Author's Guide A. In. Pozdnyakova and V. In. Cheverikina is a unique and deep work that will become an indispensable assistant for students, graduate students and specialists in the field of thermodynamics and materials science. This manual not only covers the theoretical aspects of thermodynamic calculations, but also offers practical approaches to the analysis of complex multicomponent systems, making it a valuable resource for anyone seeking to deepen their knowledge in this field. The book opens the world of thermodynamics to the reader, starting with the basics and smoothly moving to more complex concepts. The authors focus on important aspects such as phase diagrams, which are key tools for understanding the behavior of multi-component systems. The reader will be able to learn how to interpret the diagrams correctly, as well as how to conduct calculations that will help in the practical application of the theory. This is especially true for engineering students, engineers, and researchers working in the fields of chemistry, physics, and materials science. The manual will be of interest to those who are fond of scientific research, as well as those who want to apply theoretical knowledge in practice. The age category of readers is not limited, but it will be especially useful for undergraduate and graduate students who want to deepen their knowledge in thermodynamics and learn how to apply them to real-world problems. The book can also attract the attention of practitioners working in laboratories, manufacturing or in scientific institutions. The topics raised in the book cover a wide range of issues related to thermodynamic calculations and phase diagram analysis. The authors examine in detail the methods used to analyze multicomponent systems and offer the reader practical examples, which makes the material more accessible and understandable. The book also addresses questions relating to the thermodynamic properties of substances, their interaction and behavior in different conditions, which is an important aspect for understanding the processes occurring in nature and in production. The style of the authors is distinguished by clarity and logical presentation, which helps the reader to easily assimilate complex concepts. A. In. Late and B. In. Cheverikin are experienced specialists in their field, and their knowledge and experience are reflected in the pages of the book. This makes the manual not only educational material, but also a real guide for professionals . It is important to note that the authors are also known for their other work on thermodynamics and materials science, which confirms their authority in this field. If you are looking for a high-quality textbook on thermodynamic calculations and phase diagram analysis, then “No. 2220 Thermodynamic calculations and phase diagram analysis of multicomponent systems” will be an excellent choice. This book will not only expand your knowledge, but also inspire new research and discoveries in the field of thermodynamics. Read, study and apply the knowledge gained in practice - and you will see how thermodynamics can change your understanding of the world around you