The book "Oil and Gas Field Geology and Hydrogeology," authored by a team led by V.G. Kanalin, S.B. Vagin, and M.A. Tokarev, presents a unique and in-depth exploration that will serve as an indispensable resource for specialists in geology, hydrogeology, and oil and gas extraction. This publication not only covers the fundamental aspects of oil and gas field geology but also offers readers a comprehensive range of knowledge essential for understanding the processes occurring beneath the Earth's surface. Beginning with the basics, the book introduces readers to the geological structures and processes that influence the formation and accumulation of hydrocarbons. The authors delve into geological models that aid in predicting oil and gas deposits, while also discussing methods for their exploration and development. Notably, the book addresses not only traditional techniques but also modern technologies such as 3D modeling and geographic information systems, making it relevant for professionals working with the latest tools. Who is this book intended for? Primarily, it will benefit students and graduate students in geological and petroleum faculties, as well as practicing geologists and engineers eager to deepen their knowledge and skills in oil and gas field geology. Additionally, the book will appeal to ecologists and environmental specialists, as it examines the interactions between hydrocarbon extraction and ecosystems, a topic of increasing importance in light of contemporary environmental challenges. The themes explored in the book cover a wide array of issues, from the formation of oil and gas systems to the assessment of reserves and the economic feasibility of developing deposits. The authors emphasize the importance of a comprehensive approach to studying geological processes, which not only enables efficient resource extraction but also minimizes environmental risks. This book represents a significant contribution to understanding the relationship between geological processes and hydrocarbon extraction, making it especially valuable in today's world, where sustainable development and environmental protection are priorities. The authors' style is marked by clarity and accessibility, allowing even complex scientific concepts to be presented in an understandable manner. They incorporate numerous practical examples, making the material more engaging and illustrative. Furthermore, the book includes a wealth of illustrations, graphs, and tables that enhance comprehension of the presented content. V.G. Kanalin, S.B. Vagin, and M.A. Tokarev are renowned experts in their field, and their previous works have already garnered recognition among professionals. Their experience and knowledge, compiled in this book, make it not only a textbook but also a reference guide for practicing specialists. If you are seeking literature on oil and gas field geology, hydrogeology, or simply wish to understand the intricacies of our planet's depths, this book will be your steadfast companion. It answers numerous questions and opens new horizons for comprehending the complex processes occurring beneath the Earth's surface. Don’t miss the chance to immerse yourself in the fascinating world of geology and uncover the secrets our planet holds.