The book “Theory of virtualization and protection of telecommunications” by Vladimir Viktorovich Kotenko is a fascinating and deep immersion in the world of modern information technologies, covering both theoretical aspects and practical applications. In a rapidly developing digital space, where virtualization is becoming an integral part of the infrastructure, this work is an important resource for specialists in the field of information security, telecommunications and IT. Kotenko, known for his research in the field of information security and network security, offers the reader a unique look at the theory of virtualization. The book discusses key concepts and methods that allow not only to optimize the use of resources, but also to ensure a high level of data protection. The author shares his knowledge on how virtualization can be used to create secure and efficient telecommunications systems, making this book relevant for students, graduate students and practitioners. The topics covered in the book cover a wide range of issues, including the architecture of virtual environments, access protection and management mechanisms, as well as the risks associated with virtualization. Kotenko not only describes existing technologies, but also analyzes their shortcomings and vulnerabilities, which allows the reader to better understand how to avoid potential threats. In this context, the book becomes not only a tutorial, but also a practical guide for those who seek to improve the level of security of their telecommunications systems. Who can like this book? First of all, it will be of interest to students and graduate students of technical specialties, as well as professionals in the field of information technology and telecommunications . If you are engaged in the development and implementation of data protection systems, or want to deepen your knowledge of virtualization and its application in modern conditions, this publication will be a real find for you. The book will also be useful to managers and managers of IT departments who seek to optimize their processes and protect corporate data. Kotenko’s style is clear and accessible, which makes complex technical concepts understandable even for those who are just starting their way in this area. His previous works, such as “Information Protection in Telecommunication Systems” and “Information Protection Systems: Theory and Practice”, have already gained recognition among specialists, and the new book continues this tradition, offering the reader fresh ideas and approaches. “Virtualization theory and telecommunications protection” is not just a book, it is the key to understanding the complex processes taking place in the world of technology. It raises important questions about safety and efficiency that are becoming increasingly relevant in a digitalized environment. By reading this work, you will not only expand your knowledge, but also receive practical recommendations that you can apply in your professional activities. If you are looking for literature on virtualization, information security or telecommunications, this book will be an indispensable source of information for you. It will help you to understand the current trends and challenges faced by specialists in this field. Do not miss the opportunity to immerse yourself in the world of virtualization and telecommunications protection together with Vladimir Viktorovich Kotenko!