Theoretical Physics . In 10 volumes. Volume 06. Hydrodynamics" is an outstanding work written by well-known Soviet physicists Lev Davidovich Landau and Evgeny Mikhailovich Lifshits .. This volume, like the whole series, is not only a textbook, but also an in-depth study that immerses the reader in the world of hydrodynamics - the science that studies the movement of liquids and gases. Hydrodynamics is one of the oldest and at the same time the most relevant areas of physics, which finds application in various fields: from meteorology to engineering and ecology. In this volume, the authors masterfully explain the basic principles and laws governing the behavior of liquids, ranging from simple models to complex phenomena such as turbulence. Landau and Lifschitz not only expound the theory, but also reinforce it with practical examples, which makes the material accessible and understandable to the reader. The book will be of interest to both students and graduate students of physical and mathematical specialties, as well as professional physicists and engineers seeking to deepen their knowledge in hydrodynamics. It will become an indispensable assistant for those who are engaged in scientific research or work in the field of applied physics. However, even if you are not a specialist, but are interested in physics and its laws, this volume will help you better understand how the world around us works. The topics raised in Hydrodynamics cover a wide range of issues: from the basics of hydrostatics to the dynamics of ideal and real liquids. The authors discuss such key concepts as pressure, speed, viscosity, and also consider the Navier-Stokes equations, which describe the movement of viscous liquids. An intriguing point is how Landau and Lifschitz relate theoretical aspects to real-world phenomena, such as waves, vortices, and even climate processes. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily assimilate complex concepts. Landau and Lifschitz are known for their ability to explain difficult topics in simple and accessible language, which makes their books real classics in the field of scientific literature. Their previous works, such as Quantum Mechanics and Statistical Physics, have already won the recognition and love of readers, and Hydrodynamics is no exception. This book not only enriches knowledge, but also inspires further research and discovery. It serves as a bridge between theory and practice, showing how physical laws operate in the real world. By reading Hydrodynamics, you can see how physics permeates all aspects of our lives, from simple phenomena such as the flow of water in a river, to complex processes in the atmosphere and oceans. If you are looking for a deep and meaningful reading that will not only expand your horizons, but also make you think about the nature of things, then "Theoretical Physics. In 10 volumes. Volume 06. Hydrodynamics" will be an excellent choice. This book is not just a textbook, but a real encyclopedia of knowledge that will be useful both for students and for professionals seeking new discoveries in the world of physics.