The book "What is mathematical physics" by Vladimir Stanislavovich Vladimirov is a fascinating and in-depth study that opens the world of mathematical physics to the reader, combining theory and practice, abstract concepts and their application in real life. This work will be a real find for students, graduate students and anyone interested in physics and mathematics, as well as for those who seek to understand how the two disciplines are intertwined and complement each other. Vladimirov, known for his scientific works and textbooks, in this book seeks to explain what mathematical physics is, what problems it solves and why it is so important for the modern scientific world. He not only lays out the theoretical foundations, but also gives many examples that help the reader better understand how mathematical methods are used to solve physical problems. Each chapter of the book is permeated with living language and accessible pitch, making complex topics more comprehensible and interesting. The book covers a wide range of topics, from the basics of mathematical analysis and linear algebra to more complex concepts such as differential equations and field theory. The reader will be able to learn how to use mathematical tools to describe physical phenomena, ranging from simple mechanical systems to complex quantum processes. This makes the book not only a textbook, but also a real guide to the world of scientific discoveries. "What is mathematical physics" will be of particular interest to students and teachers of physics and mathematics, as well as to anyone who wants to deepen their knowledge in these areas. The book is suitable for both beginners and those who already have some experience and want to expand their horizons. It will be an excellent addition to the training courses, as well as an inspiration for self-study. The topics raised in the book are relevant and important for understanding contemporary scientific research. Mathematical physics plays a key role in the development of new technologies, including in the field of materials science, biophysics and even in space research. The reader will be able to see how mathematical models help predict the behavior of complex systems and how they affect our understanding of the world around us. The style of Vladimir Stanislavovich is distinguished by clarity and logical presentation . He is able to explain even the most complex ideas, which makes his work popular among students and teachers. His previous works, such as Fundamentals of Mathematical Physics and Methods of Mathematical Physics, have also earned recognition and have become reference books for many who seek a deep understanding of the subject. Readers interested in topics such as physics, mathematics, research and technology will find in this book not only useful information, but also inspiration for further study. “What is mathematical physics” is not just a book, but a whole world that opens up new horizons of knowledge and opportunities for you. Immerse yourself in a fascinating journey through mathematical physics with Vladimir Stanislavovich and discover the secrets that lurk behind formulas and equations.