The theory of non-stationary filtration of liquid and gas, written by the author's team as part of Barenblatt G. and . , Entova B. M. and Red W. M. is an in-depth and comprehensive study of filtration processes that are of critical importance in various fields of science and technology. This publication will be especially useful for students, graduate students and professionals working in the field of hydrogeology, oil and gas industry, ecology and related disciplines . From the first pages, the authors immerse the reader in the fascinating world of theoretical foundations and practical applications of non-stationary filtration. Unlike stationary processes, non-stationary filtration involves dynamic changes in the environment, which makes its study especially relevant in the modern world, where technology and ecology require constant updating of knowledge and approaches. The book covers a wide range of topics, including mathematical modeling, the physical basis of filtration, as well as methods for analyzing and solving problems related to the movement of liquids and gases in porous media. One of the key features of this publication is its accessibility for readers with different levels of training. The authors carefully explain complex concepts using clear language and illustrative examples. This makes the book ideal for students who are just beginning to get acquainted with the topic, as well as for experienced professionals seeking to deepen their knowledge and master new methods of analysis. As a result, “The theory of non-stationary filtration of liquid and gas” will become an indispensable tool for anyone interested in the dynamics of filtration processes. The topics raised in the book go beyond purely scientific research. The authors focus on the practical application of the theory in real conditions, which makes the material relevant for engineers and researchers working in the field of field development, environmental protection and water management. In the face of global climate change and the growing need for efficient resource management technologies, knowledge of the principles of non-stationary filtration is becoming especially important. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily follow the course of thought and absorb the material presented. Barenblatt, Entov and Ryzhik are known for their scientific works and publications in the field of mechanics and hydrogeology, which gives additional value to their work. Their experience and in-depth knowledge in the field of filtration make this book not only a theoretical manual, but also a practical guide that can be used in everyday work. If you are looking for literature that will help you understand the complex filtration processes, or want to expand your knowledge in the field of hydrogeology and the oil and gas industry, then “The theory of non-stationary filtration of liquid and gas” is what you need. The book will be a great addition to your library, as well as a source of inspiration for new research and projects. Do not miss the opportunity to get acquainted with this significant work, which will help you better understand the dynamics of filtration and its impact on the environment. Read, study and apply the knowledge gained in practice - and you will see how the theory becomes the basis for successful solutions in the real world