The book "Granulometric classification of soils on the basis of their physical and mechanical properties" by B. In. Okhotina is an important work that will become a reference book for specialists in the field of geotechnics, construction business and ecology. In this edition, the author is deeply immersed in the world of soils, their classification and analysis, revealing to the reader many nuances that can be decisive in the design and construction process. The main theme of the book is the systematization of knowledge about soil granulometry, which is a key aspect in understanding their behavior under load. Okhotin offers readers a unique approach to soil classification based on their physical and mechanical properties. It not only lists the characteristics, but analyzes their relationships, which allows more accurate prediction of the behavior of soils in different conditions. This makes the book particularly useful for engineers, architects, and students studying geotechnics. The book will be of interest to both professionals and students who are just beginning their journey in this field. Geoscientists, designers and researchers will find in it many practical recommendations and techniques that will help them in their work. Students studying at the faculties of civil engineering or geology will receive from the book not only theoretical knowledge, but also practical skills that will be useful in their future careers. The topics raised in the book cover a wide range of issues, including the impact of granulometric composition on the stability and strength of soils, methods of their research and classification. Ochotin also considers the influence of external factors, such as humidity and temperature, on the properties of soils. These aspects make the book relevant not only for professionals working in the construction industry, but also for environmentalists involved in sustainable development and environmental protection. The author's style is distinguished by clarity and accessibility, which allows even complex scientific concepts to be presented in an understandable form. In. In. Okhotin is an experienced specialist who not only theoretically, but also practically approaches issues related to soils. His previous works, such as Soil Physics and Soil Mechanics, have also earned recognition in academia and have become the basis for many studies. The book "Granulometric classification of soils on the basis of their physical and mechanical properties" is not just a textbook, but a real find for everyone who seeks to deepen their knowledge in the field of geotechnics. It will help readers not only to understand how to properly classify soils, but also teach how to use this knowledge in practice, which is especially important in the conditions of modern construction, where errors can cost very expensive. If you are looking for information on how to properly assess the properties of soils, or want to learn about modern methods of analyzing them, this book will become your reliable assistant. It is suitable for both experienced professionals and beginners seeking new knowledge and skills .. Do not miss the opportunity to get acquainted with this important work, which will help you become a real expert in the field of granulometric classification of soils .