The book "No. 303 Metallurgy and heat treatment" by the authors Barsukov A. D. and Zakharova A. M. is a unique and in-depth study on the most important aspects of metallurgy and heat treatment of metals. This publication will become an indispensable assistant for both students and graduate students of technical universities, as well as for practicing engineers and specialists in the field of materials science. In their book, the authors consider in detail the processes associated with changing the structure and properties of metals under the influence of various thermal regimes. They share their knowledge of how heat treatment can affect the mechanical characteristics of materials, their strength, hardness, and ductility. The reader will be able to learn about various heat treatment methods, such as quenching, annealing and normalization, and how these processes can be optimized to achieve the best results. The book will be of interest to a wide range of readers: from students studying metallurgy and materials science, to experienced professionals working in the production sector. It is suitable for those who want to deepen their knowledge of the properties of metals and their behavior under different conditions, as well as for those who seek to master modern metal processing technologies. Engineers working in engineering, construction and other industries will find it useful tips and tricks that will help them in their practical activities. The topics raised in the book cover not only technical aspects, but also philosophical issues related to the development of metallurgical science. The authors emphasize the importance of a scientific approach in the study of materials, as well as the need for constant updating of knowledge in the rapidly changing world of technology. The book raises issues of ecology and sustainable development, which makes it especially relevant in the context of modern challenges facing humanity. The writing style of Barsukov and Zakharov is distinguished by clarity and accessibility .. They use a lively and visual language, which allows the reader to easily assimilate complex concepts. The authors not only share theoretical knowledge, but also give practical examples, which makes the material more understandable and applicable in real life. This edition will be an excellent addition to the library of any engineer or student seeking a deep understanding of the processes occurring in the world of metals. In addition, it is worth noting that Barsukov and Zakharov are recognized experts in the field of metallurgy and materials science. Their previous work has already gained respect among professionals and students. The book "No. 303 Metallurgy and Heat Treatment" continues this tradition, offering readers relevant knowledge based on the latest research and achievements in the field of metallurgy. If you are looking for information about the heat treatment of metals, want to understand how different methods can affect the properties of materials, or just interested in modern technologies in metallurgy, then this publication will be a real find for you. «No. 303 Metallurgy and heat treatment» is not just a book, but a whole world of knowledge that will open before you, it is only necessary to take the first step.