"Dynamics of Nonlinear Long Waves in Slope Channels of Variable Section" by O. and . D., and E...................................... N. Pelinovsky and . and . Didenkulova is a unique study that immerses the reader in the complex and exciting world of hydrodynamics and nonlinear waves. This work is a real treasure trove for specialists in the field of hydraulic engineering, water engineers, mathematicians and physicists, as well as for undergraduate and graduate students seeking to understand the subtleties of long-wave behavior in difficult conditions. What is behind this scientific work? The focus is on the dynamics of long waves that occur in inclined channels with variable cross-section. The author’s team masterfully reveals the mechanisms of formation and development of these waves, demonstrating how nonlinear effects and geometric features affect their behavior. The book discusses in detail mathematical models based on hyperbolic equations, and gives practical recommendations for their application. Particular attention is paid to the analysis of waves that can manifest themselves in hydraulic structures, canals and water systems, where the change in cross-section and inclination create unique conditions for the emergence of complex dynamic processes. The book Dynamics of Nonlinear Long Waves in Slope Channels of Variable Section is not only a theoretical work, but also a practical guide that will help engineers and scientists predict the behavior of waves in real hydrosystems. It describes in detail the methods of numerical modeling, which makes it an indispensable tool for those involved in the design and operation of water facilities, as well as for researchers interested in nonlinear hydrodynamics. The author's style is distinguished by clarity and logical consistency, which facilitates the perception of even complex mathematical concepts, and rich illustrative material helps to better understand dynamic processes. This book is especially relevant for those who are engaged in the study of waves in variable cross-section and inclined channels, as well as for specialists working in the field of hydropower, marine engineering and environmental monitoring. It reveals topics related to nonlinearity of waves, their stability and interaction with geometric features of channels, making it a valuable source of knowledge for professionals seeking to accurately model and control hydrosystems. The author’s team, which includes leading scientists in the field of hydrodynamics, is known for his other works on nonlinear wave processes and mathematical modeling. Their style of presentation is distinguished by accuracy, in-depth analysis and the desire to convey complex ideas to a wide audience. Readers familiar with works such as “Nonlinear Waves in Hydrosystems” or “Long Wave Modeling in Hydrotechnical Structures” will find in this book new ideas and approaches that expand their professional horizons. If you are looking for a book Combining theory and practice , reveals complex wave mechanisms in inclined channels and variable cross-section, It also helps to understand ,. How to manage these processes , “The dynamics of nonlinear long waves in inclined channels of variable cross-section” will become an indispensable source of knowledge for you. This work is a real challenge for the mind and a source of inspiration for those who want to comprehend the depths of hydrodynamics and apply them in real life.