The book "Processing of toughened and reducing surfaces of machine parts" edited by A. R. Iskhakova and other authors is an important work that will be of interest to both specialists in the field of mechanical engineering and students of technical universities. This publication covers a wide range of topics related to machine parts processing, making it an indispensable reference for engineers, designers and anyone seeking to deepen their knowledge in the field of modern processing technologies. The book examines the key aspects of hardening and restoring the surfaces of machine parts, which is a topical topic in the context of the constant desire to improve the efficiency and durability of machines. The authors share their knowledge about various processing methods, such as thermal, chemical and mechanical hardening, as well as about modern technologies that can significantly improve the performance of parts. The reader will be able to learn about advanced recovery methods that help extend the life of the equipment and reduce the cost of its maintenance. Who can like this book? First of all, it will be useful for students and teachers of technical specialties, as well as practicing engineers and designers working in the field of mechanical engineering . If you are interested in new technologies, strive to improve your skills in processing materials or want to learn about the latest achievements in the field of restoration of parts, then this publication will be a real find for you. The book will also be of interest to those working in related fields such as the automotive industry, aviation, and energy. The topics raised in the book cover not only technical aspects, but also economic ones, which makes it especially relevant in the context of modern production. The authors emphasize the importance of choosing the right processing technologies that can significantly affect the cost of production and its competitiveness. They discuss issues related to process optimization, which is a key factor for the successful functioning of enterprises in a highly competitive environment. The style of the authors is clear and accessible, which allows the reader to easily assimilate even the most complex concepts. The book is filled with practical examples and illustrations that help to better understand the material. The authors use a modern scientific approach, which makes their work relevant and in demand in the professional environment. Among other well-known works of A. R. Ishakov can be distinguished works devoted to mechanics and processing of materials, which confirms his high level of expertise in this field. In conclusion, “Processing toughened and reducing surfaces of machine parts” is not just a textbook, but a real encyclopedia of knowledge for everyone who wants to be one step ahead in the world of mechanical engineering. This book will be your reliable assistant in mastering modern technologies and methods that will help you succeed in your professional activities. Do not miss the opportunity to get acquainted with this unique edition, which will open up new horizons in the field of machine parts processing.