Lectures on Theoretical Mechanics . H. 1" edited by O. N. Harina is a unique educational material that will become an indispensable assistant for students, graduate students and anyone interested in mechanics and physics. This work is the first volume of an extensive course that covers the basic principles of theoretical mechanics, offering readers not only a theoretical framework but also practical examples that will help them better understand complex concepts. In this publication, the authors strive to make the material accessible and understandable, which is especially important for students of technical specialties. The book covers key topics such as kinematics and dynamics, Newton's laws, reference systems and basic principles of working with forces. Each section is built logically and consistently, which allows the reader to step by step plunge into the world of mechanics, without losing the thread of the narrative. Interestingly, the authors use many illustrations and graphs, which makes the study of the material more visual and fascinating. This book will be especially useful for those who study physics at the level of higher education, as well as for those who are preparing for exams and want to deepen their knowledge in the field of mechanics. Students of engineering, physics and mathematics will find in it a lot of useful information that will help them not only in their studies, but also in their future professional activities. In addition, "Lectures on theoretical mechanics" may be of interest to teachers who are looking for high-quality educational materials for their students. The topics raised in the book cover a wide range of issues, ranging from the basics of mechanics to more complex concepts such as system dynamics and body interaction. This makes the book relevant for both beginners and those who already have some knowledge in this field. It is important to note that the authors not only present the material, but also offer a variety of tasks and exercises that contribute to the consolidation of knowledge and the development of analytical thinking. The style of presentation of the authors is clear and accessible, which makes it easy to digest even the most complex topics. They use simple and understandable examples, which makes learning not only productive, but also fascinating. This quality is especially appreciated in the educational literature, as it helps to avoid overload with information and contributes to a better understanding of the subject. In addition, O. N. Harin and his team of authors are known for their other work in mechanics and physics, which adds additional value to this book. Their experience and knowledge allow us to create high-quality educational materials that meet the modern requirements of the educational process. If you are looking for a quality theoretical mechanics tutorial that will help you understand the complex aspects of this science, "Lectures on theoretical mechanics. H. 1" is exactly what you need. This book will become a reliable companion in your educational path, opening up new horizons of knowledge and understanding of mechanical processes. Do not miss the opportunity to deepen your knowledge and become an expert in the field of theoretical mechanics with the help of this wonderful publication!