The book "Optimization models of refineries-NHC and means of their support", written by a team of authors led by A. C. Khokhlov, is a deep and comprehensive study in the field of process optimization at oil refineries (NPZ) and petrochemical complexes (NHC) . This publication will be of particular interest to specialists in engineering, economics, as well as students and graduate students studying petrochemistry and related disciplines. The book discusses various aspects of process optimization, which allows the reader to get a complete idea of modern methods and approaches used in this complex and high-tech field. The authors share their knowledge on how optimization models can help in improving the efficiency of refineries and NCCs, reducing costs and improving product quality. Intriguing examples of practice, as well as theoretical calculations make the material accessible and understandable to a wide audience. The book covers a variety of topics, including mathematical models, optimization algorithms, and practical tools that can be used to support decision-making at the management level. Readers will be able to learn about how to apply these models in real-world settings, as well as what technologies and software tools can help in this process. Special attention is paid to issues of sustainable development and ecology, which makes the book relevant in the light of modern challenges facing the oil and gas industry. The style of the authors is distinguished by clarity and logical presentation, which makes it easy to perceive even the most complex concepts. They use examples from real practice, which makes the material more lively and visual. The book is suitable for both experienced professionals and beginners who want to immerse themselves in the world of optimizing production processes. It can become an indispensable reference for engineers, economists and managers working in the oil and gas industry. If you are interested in optimization, production process management or want to learn more about modern technologies in petrochemistry, this book will be a real find for you. It will not only expand your knowledge, but also help you understand how to apply theoretical knowledge in practice. It is also worth noting that the team of authors working on this book includes recognized experts in the field of petrochemistry and optimization, which gives the publication additional value. Their previous work and research in this area has already won recognition, and this book continues this tradition. Thus, “Optimization models of refineries and their support means” is not just a textbook, but a real encyclopedia for everyone who wants to deepen their knowledge in the field of petrochemistry and optimization of production processes. Read this book and you will discover new horizons in the world of technology and innovation that will help you become a more competent specialist in your field.