The book "Equalities of mathematical physics" by Tikhonov A. N. and Samar A. A. is an outstanding work that has become a reference book for many undergraduates, graduate students, and specialists in physics and mathematics. This edition is a deep dive into the world of mathematical methods used to solve problems arising in various fields of physics. If you are interested in mathematical physics, theoretical physics or just want to expand your knowledge in this area, then this book will become an indispensable assistant for you. The main purpose of the book is to provide the reader with a systematic presentation of the methods and approaches that are used to solve the equations of mathematical physics. The authors, possessing rich experience in teaching and scientific activities, offer readers not only theoretical foundations, but also practical examples, which makes the material more accessible and understandable. The book deals with such important topics as partial differential equations, methods for solving them, as well as applications to real physical problems. Readers will be able to find explanations of various methods, such as the method of separating variables, the method of characteristics and many others, which will allow them to better understand how to apply these techniques in practice. The book will be especially useful for undergraduate and graduate students who study mathematical physics, as well as teachers who want to deepen their knowledge and update teaching materials. It may also be of interest to professionals working in the scientific and engineering fields, where the application of mathematical models for solving complex problems is required. If you are looking for literature that will help you understand the mathematical foundations of physics, then the “Equals of Mathematical Physics” will be an excellent choice. The topics raised in the book cover a wide range of issues, ranging from theory to practical applications. The authors emphasize the importance of mathematical models in physics, emphasizing that they allow describing and predicting physical phenomena. Readers will be able to see how mathematical methods help solve problems such as wave propagation, heat transfer, and fluid dynamics. This makes the book not only a textbook, but also a source of inspiration for those who want to see how mathematics and physics intertwine in the real world. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily assimilate complex concepts. Tikhonov A . N. and Samarsky A. A. are known for their scientific works and teaching aids, which have become classics in the field of mathematical physics Their previous works, such as General Theory of Relativity and Methods of Mathematical Physics, have also earned recognition and respect among specialists. If you are looking for books on mathematical physics, theoretical physics or mathematical methods in physics, “Equals of mathematical physics” will be a real find for you. This publication will not only enrich your knowledge, but also help you develop the analytical thinking necessary for successful work in the scientific and engineering fields. By investing time in the study of this book, you will gain a powerful tool for solving complex problems, as well as the opportunity to gain a deeper understanding of how mathematics helps to uncover the secrets of the physical world. Do not miss the opportunity to get acquainted with this outstanding work, which will be an important milestone on your way to knowledge.