The book "On the task of crossing the Marangoni boundary layer into the Prandtl layer" by Kuznetsova V. In. is an in-depth and fascinating study in theoretical mechanics and hydrodynamics. This work will certainly interest not only specialists in the field of physics and engineering, but also everyone who seeks to understand the complex processes occurring in liquids and their interaction with surfaces. In his book [D.T.] In. immerses the reader in a world where the boundaries between the different layers of fluid become a field for scientific research. The author investigates the problem of crossing the Marangoni boundary layer - a phenomenon associated with the movement of fluid under the influence of a surface tension gradient. This phenomenon has many practical applications, from technologies in microelectronics to biomedical research. Kuznetsov not only explains in detail the physical basis of this process, but also offers mathematical models that will help the reader better understand how and why certain phenomena occur. The book will be of particular interest to students and graduate students of technical specialties, as well as practicing engineers and scientists working in the field of mechanics and physics of liquids. It will be an excellent addition to the training materials and will help to deepen knowledge about fluid dynamics. In addition, applied mechanics researchers will find in it useful ideas and approaches for their own research. The topics raised in the book cover a wide range of issues, ranging from the basics of boundary layer theory to more complex aspects related to the interaction of different layers of fluid. Kuznetsov emphasizes the importance of understanding these processes to develop new technologies and improve existing ones. This study helps to understand how small changes in physical conditions can lead to significant consequences, which makes it relevant in the light of modern scientific and technological challenges. Kuznetsov's style is distinguished by clarity and accessibility, which makes even the most complex concepts understandable to a wide audience. His previous works, such as Border Layer Theory and Hydrodynamics and its Applications, have already established themselves as important sources of knowledge in the field. In this new book, the author continues to develop his ideas, offering readers not only theoretical calculations, but also practical examples, which makes the material alive and relevant. If you are interested in such topics as fluid physics, mechanics, as well as applied sciences, then “On the task of transitioning the Marangoni boundary layer to the Prandtl layer” will be a real find for you. This book will not only expand your knowledge, but also inspire new research and discoveries. Reading it, you can see how science can be not only complex, but also fascinating, opening up new horizons for understanding the world around you. Do not miss the opportunity to immerse yourself in the world of hydrodynamics and discover exciting aspects that can change your idea of the interaction of liquids. Kuznetsov V. In. offers you a unique opportunity to become part of this scientific journey, which will certainly leave its mark on your mind.