The book "Repair welding and surfacing of machine parts and mechanisms" by B. In. Eltsova is an indispensable guide for anyone interested in welding technologies and their application in the repair of machines and mechanisms. In modern production conditions, where the reliability and durability of equipment play a key role, knowledge of the basics of repair and restoration of parts becomes especially relevant. This book offers readers not only theoretical foundations, but also practical recommendations, which makes it useful both for students of technical specialties and for experienced specialists. From the first pages, the author immerses the reader in the world of welding, explaining the basic principles and technologies used in repair. In. In. Eltsov shares his rich experience, describing various methods of welding and surfacing, including their advantages and disadvantages. Readers will be able to learn how to choose the right method depending on the type of material, the condition of the part and the working conditions. The book is replete with illustrations and diagrams, which makes it easy to grasp complex moments and apply them in practice. This work will be especially interesting for those who are engaged in the repair of cars, tractors, construction equipment and other machines. Engineers, mechanics and students studying in specialties related to mechanical engineering will find a lot of useful information in it. The book is also suitable for those who want to learn new skills or improve their knowledge in the field of welding and repair. The topics raised in the book cover a wide range of issues, including equipment selection, welding parts preparation, quality control of welds, and more. The author focuses on the importance of complying with technologies, which avoids common errors and increases the efficiency of work. In. In. Yeltsov also examines current trends in welding technology, which makes the book relevant and useful for professionals seeking to keep up with the times. The author's style is characterized by accessibility and clarity of presentation, which allows even beginners to quickly understand complex issues. In. In. Eltsov is an experienced specialist who not only knows what he writes about, but also knows how to convey his knowledge to the reader. His other works are also devoted to mechanical engineering and repair, which confirms his authority in this area. The book "Repair welding and surfacing of parts of machines and mechanisms" will be a real helper for anyone who wants to improve their skills in welding It not only teaches, but also inspires new achievements, allowing readers to confidently apply the knowledge gained in practice. If you are looking for a quality repair and restoration guide, this edition is a great choice. In conclusion, this book will be an indispensable source of information for those who want to deepen their knowledge in the field of welding and repair. It will help readers not only to master the basic principles, but also to learn to apply them in real conditions, which will certainly increase their professional qualifications. Do not miss the opportunity to get acquainted with this fascinating and useful work, which will open up new horizons for you in the world of welding technologies.