The book "External friction and wear of metals" by D. In. Convisarova is a fascinating and in-depth study that immerses the reader in the world of mechanics and materials science. It addresses key aspects of friction and wear that are of great importance in both industry and everyday life. This work will become an indispensable source of knowledge for students, graduate students, engineers and anyone interested in physics and mechanics of materials. In the book, Convisarov not only explains the basic principles underlying friction and wear, but also analyzes the various factors affecting these processes. The reader will be able to learn how the properties of materials, their structure and operating conditions affect the level of friction and wear speed. The author uses many examples from real life, which makes the material more accessible and understandable. It shows how theoretical knowledge is applied in practice, and how it can help in solving specific engineering problems. This book will be of interest not only to specialists in the field of mechanical engineering and materials science, but also to a wide range of readers interested in physics and engineering. Students of technical universities will find in it useful information for their training courses, and practicing engineers will be able to deepen their knowledge and apply them in their professional activities. The book will also be useful to those engaged in research work in the field of mechanics and materials science. Topics raised in "External friction and wear of metals" are relevant in the light of modern technologies and innovations. With ever-increasing demands on the quality and durability of materials, understanding friction and wear processes is becoming critical. The book covers issues such as the effect of temperature, pressure and speed on friction, as well as methods to reduce wear and improve the efficiency of mechanisms. These aspects make Konvisarov’s work especially valuable for engineers working in the field of developing new materials and technologies. The author's style is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. Konvisarov is an experienced specialist who not only theoretically understands issues, but also has practical experience, which gives his work special value. His other famous works are also devoted to mechanics and materials, and their study can complement the knowledge gained from this book. If you are looking for literature that will help you to better understand the mechanical processes occurring in metals, or want to expand your knowledge in the field of materials science, “External friction and wear of metals” will be an excellent choice for you. The book will not only enrich your knowledge, but also inspire new ideas and solutions in your professional activities. Do not miss the opportunity to get acquainted with this unique work, which can change your idea of friction and wear . Read, learn and apply the knowledge gained in practice - and you will see how it will affect your career and professional growth