The book "Welding of metal structures" by E. Yu. Davydova is an indispensable source of knowledge for all who are interested in welding technologies and their application in construction and mechanical engineering. In this edition, the author shares his many years of experience and deep knowledge, which makes the book relevant for both beginners and experienced masters. Welding is not just a process of joining metals, it is an art that requires accuracy, skills and understanding of the physical processes occurring in metal. Davydov in his book not only explains the basic principles of welding, but also immerses the reader in the world of technology that is behind this process. He examines in detail various welding methods, such as arc, contact and gas, as well as their application in various fields. The reader will be able to learn about how to choose the right method for a specific task, which materials are better to use and which tools are needed to achieve the best results. This book will be of interest not only to professional welders, but also to students of technical universities, engineers and everyone who wants to expand their knowledge in the field of metalworking. It will be a useful tool for those who plan to engage in welding work at home or in small industries. Thanks to the available language and clear explanations, even those who are just starting their way in the welding business will be able to easily learn the material. One of the key topics raised in the book is safety when performing welding work. Davydov emphasizes the importance of compliance with safety regulations, which is especially important in modern production, where the risk of accidents can be high. It offers readers not only theoretical knowledge, but also practical advice that will help to avoid errors and make the welding process safer and more effective. The author’s style is distinguished by clarity and logical presentation . Davydov uses many illustrations, diagrams and tables that help to better understand complex processes and technologies. His previous works, such as Basics of Welding Production and Technology of Welding, have also received recognition among professionals and students, which confirms his status as an expert in this field. The book “Welding of metal structures” is not just a textbook, it is a whole world of opportunities for those who want to master welding at a professional level. It inspires experimentation and self-improvement, emphasizing that welding is not only work, but also creativity. Readers who are passionate about metal, construction and engineering will find in it a lot of ideas and recommendations that will help them implement their projects. If you are looking for literature on welding technologies that combines theory and practice, then “Welding metal structures” will be a real find for you. This book will not only enrich your knowledge, but also inspire new achievements in the world of metals and structures. Do not miss the opportunity to get acquainted with the work of E. Yu. Davydova and immerse yourself in the fascinating world of welding!