The book "Different schemes in the problems of gas dynamics on unstructured grids", created by the team of authors, represents an important contribution to the field of numerical methods used in gas dynamics. This work will be especially interesting for those who are fond of physics, mathematics and engineering sciences, as well as for students and graduate students engaged in numerical modeling and computational hydrodynamics .. The book focuses on difference schemes, which are the basis for solving complex problems associated with the movement of gases. The authors examine in detail the methods that allow effective modeling of the behavior of gases in various conditions, including high speeds and complex geometric shapes. The book covers a wide range of topics, ranging from the basics of gas dynamics to modern approaches to numerical modeling, which makes it an indispensable resource for both novice researchers and experienced specialists in this field. One of the key features of the book is the emphasis on unstructured grids, which allow for a more flexible approach to modeling complex physical processes. This is especially true for aerodynamics-related tasks, where the influence of various factors such as body shape, flow rate, and temperature must be taken into account. The authors offer the reader not only theoretical foundations, but also practical examples of the use of difference schemes, which makes the material accessible and understandable. The book will be of interest not only to specialists in the field of gas dynamics, but also to everyone who works with numerical methods in engineering. Students and graduate students studying computational sciences will find in it useful advice and recommendations on the application of difference schemes in their research. It can also be useful for practicing engineers who want to improve their skills in numerical modeling and improve the efficiency of their projects. The topics raised in the book cover a wide range of issues, including numerical stability, calculation accuracy, and optimization techniques. The authors analyze in detail various approaches to solving problems, which allows the reader to understand the principles of difference schemes and their application in real conditions. The book also touches on current trends in computational hydrodynamics, making it relevant to the study of new technologies and methods. The style of the authors is distinguished by clarity and accessibility, which makes it easy to assimilate complex concepts and ideas. The book is written taking into account the needs of the reader, which makes it not only a textbook, but also a practical guide. The team of authors includes experts in the field of gas dynamics and numerical methods, which adds additional value to the material. If you are looking for literature that will help you to better understand the numerical methods in gas dynamics and their application on unstructured grids, then “Different schemes in the problems of gas dynamics on unstructured grids” will be a real find for you. This book will not only expand your knowledge, but also inspire new research and experiments in computational hydrodynamics. Do not miss the opportunity to get acquainted with this fascinating and important work, which can become your reliable assistant in scientific and practical activities.