Book «No. 657 Theoretical basis and calculation of calibration of rollers of varietal rolling mills» by B. C. Berkovsky is a unique teaching aid that will become an indispensable assistant for students, graduate students and specialists in the field of metallurgy and mechanical engineering .. This edition not only deepens knowledge about the rolling process, but also offers the reader a holistic view of the theoretical foundations necessary for successful roll calibration calculations. The book focuses on the important problem of sizing rollers, which plays a key role in the rolling process. Berkovsky examines in detail various aspects related to the design and operation of rolling mills, which makes this work relevant not only for students, but also for practicing engineers. The reader will be able to immerse himself in the world of complex calculations and theoretical foundations that underlie the effective operation of rolling mills. The author offers the reader not only theoretical calculations, but also practical examples, which allows you to better assimilate the material and apply it in real conditions. The book will be of interest to both students of technical specialties and professionals working in the field of metallurgy, mechanical engineering and related disciplines .. It can be an excellent addition to the learning process, as well as a useful reference material for engineers involved in the design and optimization of rolling processes. In. C. Berkovsky, with a wealth of experience and deep knowledge in his field, has created a manual that meets the modern requirements and challenges facing specialists. The topics raised in the book cover a wide range of issues related to the theory and practice of sizing rolls. The reader will learn about the methods of calculation, features of the design and operation of rolling mills, as well as about modern technologies used in this field. An important aspect is the attention to innovation and new approaches, which makes the book especially valuable for those who aspire to be at the forefront of metallurgical science. The author's style is distinguished by clarity and accessibility, which makes it easy to perceive complex technical concepts. Berkovsky uses illustrative examples and illustrations, which makes the material more understandable and fascinating. Readers familiar with his other works will appreciate the consistency and depth of the analysis that has become the author's calling card. His previous publications also deal with various aspects of metallurgy and mechanical engineering, which confirms his status as an expert in this field. The book "No. 657 Theoretical basis and calculation of calibration of rollers of varietal rolling mills" is not just a textbook, but a real find for everyone who wants to understand the processes taking place in the world of metallurgy more deeply. It will become a reliable companion for students seeking knowledge and practitioners who want to improve their skills. If you are looking for high-quality literature on metallurgy, rolling and calibration of rolls, this edition will definitely not leave you indifferent. Allow yourself to immerse yourself in the world of theoretical foundations and practical calculations that will help you become a true master of your craft.