Methods of Mathematical Physics . The environment of non-interacting particles” by Yakov Borisovich Zeldovich and Alexei Myshkis is a unique work that immerses the reader in the world of complex mathematical models and physical theories. This edition is part of an extensive series devoted to the methods of mathematical physics and offers an in-depth understanding of the behavior of systems consisting of non-interacting particles. From the first pages of the book, the authors set a tone that combines a strict scientific approach and the accessibility of the presentation. They take the liberty of explaining complex concepts, such as statistical mechanics and quantum theory, in the context of non-interacting particles, making the material available to both students and experienced researchers. The book not only reveals theoretical aspects, but also offers practical examples, which allows the reader to better assimilate the material and apply it in real life. This work will be of interest not only to physicists, but also to mathematicians, engineers and everyone who is passionate about the exact sciences. Senior students, graduate students and faculty will find valuable resources in it for their research and learning process. In addition, the book can attract the attention of readers interested in the philosophical aspects of science, as the authors raise questions about the nature of matter and interactions at the microscopic level. The topics covered in the book cover a wide range of topics such as thermodynamics, statistical physics, and quantum mechanics. Zeldovich and Myskis not only expound the theory, but also discuss its practical application, which makes their work especially valuable. Readers will be able to see how mathematical models help explain physical phenomena, and may even be inspired by their own research in this area. The style of the authors is clear and logical, which makes it easy to follow their thoughts. They use many illustrations and graphs to visualize complex concepts, making reading more fun and less tedious. Zeldovich and Myskis are known for their ability to explain even the most difficult topics in simple language, which makes their books a real godsend for anyone who wants to deepen their knowledge in mathematical physics. In addition, this work can be considered as a continuation of other well-known works of the authors, such as “Cosmology” and “Introduction to quantum mechanics”. Each of their books complements the other, creating a holistic view of physics and mathematics. Readers who are already familiar with previous editions will find in "Methods of Mathematical Physics. The environment of non-interacting particles is a logical continuation of their research. In conclusion, the book "Methods of mathematical physics . The environment of non-interacting particles" is not just a textbook, but a real find for everyone who seeks to understand complex physical phenomena through the prism of mathematics. It opens the door to a world where every formula and equation has its own meaning, and where science becomes accessible and fascinating. If you are looking for a deep understanding of physics and mathematics, this publication will be your reliable companion in this fascinating journey.