The book "Practices on lubricants" by A. C. Kilova and E. Sh. Tavtilova is an indispensable guide for anyone interested in the basics and nuances of working with lubricants . This edition will be useful for both technical students and practicing engineers and professionals working in the field of mechanical engineering, automotive industry and other related industries. The book discusses key aspects related to the selection, application and testing of lubricants. The authors share their experience and knowledge that will help the reader not only to understand what lubricants exist, but also to learn how to use them correctly in various conditions. Each chapter is filled with practical examples and recommendations, which makes the material accessible and understandable even for those who are just beginning to get acquainted with this topic. One of the main themes of the book is the importance of the correct choice of lubricants for various mechanisms and nodes. The authors emphasize that the wrong choice can lead to serious consequences, such as premature wear of parts or even equipment failure. In this context, the book raises questions regarding the characteristics of lubricants, their classification and application depending on the operating conditions. Special attention is paid to the methods of testing and analysis of lubricants . The authors describe in detail how to conduct tests to determine the effectiveness and reliability of various lubricants. This makes the book not only a theoretical guide, but also a practical guide for professionals who want to improve their skills and knowledge in this area. The book will be of interest not only to students and engineers, but also to everyone who works with technology and wants to deepen their knowledge of lubricants. It is suitable for both beginners and experienced professionals seeking to update their knowledge of current trends and technologies in the field of lubricants. If you are looking for information on how to choose the right lubricant for your car or equipment, this book will be your reliable assistant. The style of the authors is distinguished by the clarity and accessibility of the presentation, which makes it easy to perceive even the most complex topics. A. C. Keel and E. Sh. Tavtilov are experienced specialists in their field, and their knowledge and experience make this book an authoritative source of information. They are also known for their other work on various aspects of engineering and materials science, which confirms their competence and deep understanding of the topic. Lubricant Practices is not just a training tool, but also a valuable resource for anyone who wants to be aware of the latest developments in the field of lubricant technology. The book will be an excellent addition to the library of any engineer, mechanic or student interested in modern technologies and their application. If you are looking for high-quality literature on lubricants, pay attention to this publication - it will not disappoint you and will help to significantly expand your knowledge in this important area.