The book "Theoretical foundations of applied mechanics: a textbook" under the authorship of a team of authors, in particular, Ivan Fedorovich Diakov, represents an important contribution to the field of engineering sciences and mechanics. This tutorial is intended for students of technical universities, graduate students and anyone interested in the basics of mechanics and its practical application. It collects theoretical knowledge and practical skills that are necessary for understanding and solving problems in the field of mechanics. From the first pages, the reader is immersed in the world of mechanical laws and principles that form the basis for many engineering disciplines. The book covers a wide range of topics, ranging from the basics of kinematics and dynamics to more complex aspects such as elasticity theory and material mechanics. Each section is written with clarity and accessibility, which makes the material understandable even for those who are just beginning to get acquainted with this science. One of the key features of this manual is its practical orientation .. The authors not only explain theoretical concepts, but also offer many examples and tasks that help to consolidate the knowledge gained. This makes the book ideal for students who are preparing for exams, as well as for practicing engineers who want to refresh their knowledge or understand new aspects of applied mechanics. Who can like this tutorial? First of all, it will be useful for technical students studying mechanics, as well as graduate students working on dissertations in related fields . Engineers and practitioners working in areas such as mechanical engineering, construction mechanics, and aerodynamics will also find much useful information in the book. However, interest in the topic can also arise in a wide audience, including science and technology enthusiasts who seek to expand their knowledge of how physical laws work in the real world. The book raises important topics such as force interaction and body movement, which is the basis for understanding more complex engineering tasks. The authors focus on the importance of mechanics in modern technologies, which makes the material relevant and in demand. With the rapid development of science and technology, knowledge of the basics of applied mechanics becomes not only useful, but necessary for a successful career in the engineering field. The style of writing of the authors is distinguished by the clarity and logic of the presentation . They skillfully balance between theory and practice, which allows the reader not only to assimilate the material, but also to apply it in practice. The team of authors includes experienced teachers and practitioners, which gives the book additional value. If you are looking for a manual on mechanics that will help you not only understand the theory, but also learn how to apply it in practice, “Theoretical Foundations of Applied Mechanics” is exactly what you need. This book will be a reliable companion in your learning process and will help you confidently step on the path to professional success. Do not miss the opportunity to immerse yourself in the world of mechanics and discover new horizons of knowledge!