Instrumental materials and their heat treatment . Part 2 by A. M. Saraykina is an indispensable source of knowledge for specialists and students immersed in the world of metal, materials science and engineering technologies. This book continues the series devoted to the intricacies of the selection, processing and improvement of instrumental materials, revealing to the reader all the nuances of modern methods of heat treatment, which play a key role in improving the performance of metals and alloys. The author focuses on an integrated approach to the study of the properties of instrumental materials, their structural changes under the influence of various types of heat treatment. The book deals in detail with the processes of quenching, tempering, annealing and their impact on strength, hardness, wear resistance and other important parameters. Special attention is paid to modern technologies of heat treatment, such as vacuum quenching, nitriding and nitrocement, which makes the work relevant for engineers, technologists and designers seeking to create more durable and efficient tools. A. M. Saraikin, an author with rich experience and recognition in academia, masterfully combines theoretical foundations with practical recommendations. His style of presentation is distinguished by clarity and accuracy, which makes complex technological processes available even to novice specialists. In the book you can find not only a description of methods and technologies, but also an analysis of errors typical of practical work, as well as tips for optimizing processes for achieving the best results. This book will be an excellent assistant for those who are engaged in the development of new tool alloys, optimization of technological modes and improving the quality of metal products. It is suitable for engineers, technologists, students of specialized universities and researchers looking for a deep understanding of heat treatment processes and their impact on the properties of materials. It is especially valuable for those who want to expand their knowledge in the field of modern methods of metal processing, to understand how to properly manage the structure and properties of metals to achieve maximum wear resistance and durability of tools. The topics raised in the book are relevant for the development of industry and engineering, because it is from the correct selection and processing of materials that the efficiency of production and the quality of the final product depend. The book explores in detail the effects of temperature, time, and processing environment on the structure and properties of metals, making it a valuable guide for practitioners seeking to improve their technologies. The peculiarity of the book is not only a deep scientific approach, but also a practical orientation, supported by modern examples and recommendations. This makes "Instrumental materials and their heat treatment. Part 2 is an indispensable tool for those who want to be aware of the latest achievements in the field of metal processing and use them in their projects. If you are interested in metallurgy, metal processing technology or are looking for a reliable source of information for advanced training, this book will become your reliable companion on the way to professional growth. Overall, book A. M. Saraykina is not just a tutorial, but a complete guide to modern technologies of heat treatment of tool materials, which will help you understand how to manage the structure of metals to achieve maximum efficiency and reliability of tools. Her reading will inspire you to new discoveries and practical achievements in the field of materials science and engineering, making your professional path more confident and saturated.