Definition of performance horizon . authored by a team of authors, including Z. C. Aliyeva, is an important work in the field of geology and oil and gas production. This publication will be an indispensable tool for specialists working in the field of development and operation of horizontal wells, as well as for students and graduate students studying oil and gas technologies. In this book, the authors consider in detail the methods and approaches to determine the productivity of horizontal wells, which is a key aspect in assessing the efficiency of hydrocarbon production. They cover both theoretical and practical aspects, which allows readers not only to understand the basic principles, but also to apply them in real-world conditions. The book contains many examples from practice, which makes the material more accessible and understandable. One of the main topics raised in the book is the need to optimize production processes. The authors discuss modern technologies and methods that allow to increase the productivity of wells, as well as analyze factors affecting the efficiency of work. This is especially true in the context of growing competition in the hydrocarbon market and the need to increase the profitability of projects. The book will be of interest not only to professional geologists and engineers, but also to everyone who is interested in modern technologies in the field of mining. Students who study oil and gas will find useful information in it that will help them in their studies and future careers. In addition, specialists in related fields, such as environmentalists and economists, will also be able to extract a lot of useful information from the book regarding the interaction of mining technologies and the environment. The style of the authors is distinguished by clarity and accessibility of presentation, which makes complex technical aspects understandable even for readers who do not have deep knowledge in this area. The book is saturated with graphs, tables and diagrams, which allows you to visualize the material presented and facilitates its perception. This makes the "Determination of Performance Horizon. wells" not only a theoretical manual, but also a practical guide for specialists. If you are looking for literature that will help you understand modern approaches to hydrocarbon production, then this book will be an excellent choice. It can be useful for both novice professionals and experienced professionals seeking to update their knowledge and master new methods of work. In addition, this publication can be compared with other well-known works in the field of oil and gas production, such as “Technology for the development of oil and gas fields” and “Geology and development of hydrocarbon resources” .. These books also cover important aspects of mining and may be useful for a deeper understanding of the topic. In conclusion, “Determination of performance horizon. wells” is not just a book, but a storehouse of knowledge that will help you become a more competent specialist in the oil and gas industry Do not miss the opportunity to expand your horizons and deepen your knowledge, immersing yourself in this fascinating and relevant world.