The book "Fundamentals of the theory and calculation of the boundary layer" by the authors of N. N. Socket and N. M. Lukina is a unique guide that immerses the reader in the fascinating world of aerodynamics and hydrodynamics. Published in 2000 in Ulyanovsk, this work is a text of lectures that not only explain the basic principles of boundary layer theory, but also offer practical methods for its calculation. This publication will become an indispensable assistant for students, graduate students and specialists in the field of fluid and gas mechanics, as well as for anyone interested in physics and engineering. The book covers key aspects of boundary layer theory, from its definition to complex calculations. The authors share their knowledge and experience, explaining how the boundary layer affects the movement of liquids and gases, as well as the aerodynamic characteristics of various objects. The reader will be able to learn about how boundary layers arise and develop, what factors affect them, and how this knowledge can be applied in practice in various engineering tasks. Who is this book intended for? First of all, it will be useful for technical students studying aerodynamics, hydrodynamics and mechanics . However, interest in this topic may also arise from a wider audience: engineers working in the field of aircraft design, cars and ships, as well as researchers engaged in scientific developments in the field of physics and mechanics. The book will be interesting to those who are simply interested in science and want to understand more deeply how natural laws work in the context of real objects. The topics raised in the book are relevant and important to the modern world. Understanding the boundary layer is of great importance in areas such as aviation, automotive and shipbuilding. The authors emphasize that knowledge about the behavior of the boundary layer can significantly improve the efficiency and safety of various vehicles. In addition, the book deals with issues related to the sustainability of flows and the possibility of their control, which opens up new horizons for innovative technologies. The style of the authors is distinguished by clarity and accessibility, which makes complex concepts understandable even for those who are just beginning to get acquainted with this topic. N. N. Socket and N. M. Lukin experienced teachers and researchers who were able to create a material that is not only informative, but also fascinating Their previous works were also noted for their high level of scientific and practical significance, which confirms their authority in this field. If you are looking for a book that will help you understand the basics of boundary layer theory, and also give you practical calculation skills, then "Fundamentals of boundary layer theory and calculation" is what you need. Do not miss the opportunity to expand your knowledge and skills in the field of fluid and gas mechanics by immersing yourself in this fascinating and useful literature. The book will be your reliable companion on the way to understanding complex physical processes and their application in engineering practice.