Excavators E-505, E-505A (E-651) by A. P. Smolin is a real find for anyone interested in construction equipment and its operation. In this edition, the author examines in detail the technical characteristics, features of the design and application of excavators, which have become an integral part of the modern construction process. Smolin, with extensive experience in the field of engineering and operation of construction equipment, shares his knowledge and observations, which makes the book not only informative, but also fascinating. He immerses the reader in the world of excavators, talking about how these powerful machines have changed the approach to construction and land management. The book examines not only the main models of E-505 and E-505A, but also their modifications, such as E-651, which allows the reader to see the evolution of technologies and their impact on performance. The book will be of particular interest to engineers, students of technical universities, as well as everyone who works in the construction industry and wants to expand their knowledge of construction equipment. If you are fond of cars, like to understand their device and want to understand how to properly operate them, this publication will become a real guide for you. In it you will find not only technical data, but also practical advice on the operation and maintenance of excavators, which makes it useful for both beginners and experienced specialists. The topics raised in the book cover a wide range of issues, ranging from the design and production of excavators to their application in various environments. Smolin emphasizes the importance of choosing the right technique for specific tasks, which can significantly affect the result of the work. He also discusses safety issues in the operation of excavators, which makes the book relevant in the light of modern labor protection requirements. The author's style is characterized by accessibility and clarity of presentation, which allows even those who do not have deep technical knowledge to easily absorb information. Smolin uses many examples from practice, which makes the material more clear and understandable. His previous works have also been devoted to construction machinery, and they have received positive reviews for their informative and practical value. If you are looking for literature on construction equipment that will not only give you theoretical knowledge, but also help to put them into practice, the book “Excavators E-505, E-505A (E-651)” will be an excellent choice. It can be of interest not only to professionals, but also to students who are preparing for a career in engineering and construction. In conclusion, it is worth noting that this publication is not just a textbook, but a real guide that will be useful in the work and will help you better understand the world of excavators and their role in modern construction. Do not miss the opportunity to immerse yourself in this fascinating topic and expand your horizons with the help of the book A. P. Smolina .