The book "Unestablished movement of real fluid in pipes" by I. A. Charny is a fascinating and in-depth study that immerses the reader in the world of fluid dynamics and fluid mechanics. This work will become an indispensable source of knowledge for students, graduate students and specialists in engineering, physics and related disciplines, as well as for anyone interested in the complex processes occurring in pipeline systems. In his book Charny considers the unidentified movement of real liquid, which is a key aspect in understanding the dynamics of flows in pipes. It raises important questions regarding the behavior of fluids as conditions change, such as pressure, temperature, and flow rate. These aspects are of great importance for the design and operation of pipeline systems in various industries, from oil and gas to chemical. The reader will be able to learn about how different factors affect flow characteristics and how these changes can be predicted and managed. The book is written in accessible language, which makes it understandable even for those who are not experts in this field. However, despite the simplicity of the statement, and . A. Charny does not overlook the depth of scientific analysis. It uses many examples and illustrations that help to better understand complex concepts and theories. In this work, the reader will find both theoretical calculations and practical applications, making it ideal for students and practicing engineers. Who can like this book? First of all, it will be of interest to students of technical universities studying hydraulics and mechanical systems . Graduate students and researchers working in the field of fluid mechanics will also find it a lot of useful. In addition, the book will be useful to practicing engineers involved in the design and analysis of pipeline systems, as well as anyone who wants to expand their knowledge in the field of physics and engineering. The topics raised in the book cover a wide range of issues, such as flow dynamics, the effect of friction, the behavior of real liquids and their interaction with solid surfaces. Charny emphasizes the importance of accounting for unknown processes, which avoids serious errors in the design and operation of systems. This book not only enriches the reader with new knowledge, but also forms the critical thinking necessary to solve complex engineering problems. Style and . A. Black is clear and logical . He skillfully combines theory with practical examples, which makes reading fascinating and informative. Charny is the author of several other well-known works in the field of fluid mechanics and hydrodynamics, which confirms his high level of expertise and deep understanding of the subject. His books are often recommended as tutorials and reference books, which speaks to their quality and relevance. “Unknown movement of real fluid in pipes” is not just a textbook, but a real find for anyone who wants to understand the complex processes taking place in pipelines. By reading this book, you will not only gain new knowledge, but also be able to put it into practice, making it especially valuable for future engineers and researchers. If you are looking for high-quality and in-depth research in the field of hydrodynamics, then this book will be your faithful companion on the way to mastering this fascinating science.