Book "Mountain Machines for Open Works . Career excavators” by Khmyznikov and Lykov is a unique work that immerses the reader in the world of mining equipment and its application in open pits. This edition will be a real find for students, specialists and anyone interested in mining, construction and heavy machinery. The authors, Khmyznikov and Lykov, are recognized experts in the field of mining machines and technologies. In their book, they examine in detail the different types of career excavators, their design features, principles of operation and scope of application. Readers will be able to learn about current trends in the design and operation of excavators, as well as about new technologies that make this technique more efficient and safe. The book is not only informative, but also written in a fascinating style, which makes it available to a wide audience. It will be of interest not only to professionals, but also to students studying mining, as well as to fans of engineering who want to expand their knowledge of quarry excavators. If you are looking for information about how excavators work, what technologies are used in their production, or you want to understand how to choose the right equipment for your needs, this book will be an indispensable source for you. The topics raised in the book cover a wide range of issues: from the basics of excavator design to their role in the mining process. The authors emphasize the importance of choosing the right equipment for different operating conditions, as well as the impact of modern technologies on the efficiency and safety of excavators. This makes the book relevant in light of the rapidly changing requirements for mining engineering and ecology. The style of the authors deserves a special mention. Khmyznikov and Lykov are able to explain complex technical aspects easily and easily, which makes their work understandable even for those who do not have deep knowledge in the field of mining. Their approach to the presentation of material allows the reader not only to assimilate the information, but also to become interested in the topic, which is an important aspect for any educational publication. If you are looking for books on the topic of mining equipment, pay attention to such works as "Mining Machines" A. and . Kostyukova or "Technology of open mining" B. N. Solovyov . These books, as well as the work of Khmyznikov and Lykov, will help you to better understand the specifics of the work of quarry excavators and other mining machines. In conclusion, "Mining machines for open works. Career excavators” is not just a textbook, but a whole world in which you are invited to enter the author’s duet. This book will be a useful resource for anyone who wants to understand the intricacies of working with quarry excavators, as well as for those who seek to be aware of the latest innovations and technologies in the field of mining technology. Do not miss the opportunity to expand your knowledge and discover new horizons in the world of heavy machinery!