The book "Friction and cavitation in gears - rolling pairs" by N. Abacharaeva is a unique study that immerses the reader in the world of mechanics and engineering, revealing the complex processes occurring in gears and rolling pairs. This edition will be especially interesting for those who are fond of mechanical engineering, mechanics, as well as students and specialists working in the field of design and operation of mechanisms. In his work, Abacharev analyzes in detail the phenomena of friction and cavitation, which play a critical role in the functioning of gears. The author not only describes physical processes, but also offers practical recommendations for minimizing them, which makes the book not only a theoretical manual, but also a valuable practical guide. The reader will be able to learn about how to correctly select materials for gears, how operating conditions affect their durability and efficiency, as well as about modern methods of diagnosing and assessing the state of the mechanisms. The book will be of interest not only to engineers and designers, but also to students of technical specialties who want to deepen their knowledge in the field of mechanics. It can also attract the attention of researchers dealing with the problems of friction and wear, because the author proposes new approaches and methods that can be useful in scientific practice. The topics raised in the book are relevant and important for modern mechanical engineering. In the context of the constant desire to improve the efficiency and reliability of machines, understanding the processes of friction and cavitation becomes key. Abacharev focuses on how the wrong choice of materials or insufficient lubrication can lead to serious breakdowns and expensive repairs. This information will be useful for both students and practicing engineers who seek to improve their skills and knowledge. The author's style is distinguished by clarity and accessibility of presentation, which allows even complex technical aspects to be perceived easily and with interest. N. Abacharev is an experienced specialist in the field of mechanics, and his previous work has also earned recognition in the scientific community. Readers familiar with his other works can expect the same high level of quality and depth of analysis from this book. If you are looking for a book that will help you understand the intricacies of gears and rolling pairs, “Friction and cavitation in gears rolling pairs” will be an excellent choice. This is not just a manual, but a real find for anyone who wants to deepen their knowledge in the field of mechanics and mechanical engineering. Do not miss the opportunity to discover the world of friction and cavitation, which, despite its complexity, is full of fascinating discoveries and practical solutions. This book will be your reliable assistant in learning and understanding the key processes occurring in the mechanisms and will help you become a more competent specialist in your field.