The book "Information Security and Ensuring the Reliability of Computer Systems" by B. A. Ganja is an important and relevant work that immerses the reader in the world of information security and reliability of computer systems. With the rapid development of technology and an increase in the number of cyber threats, this book is becoming an indispensable source of knowledge for IT specialists, students of technical universities and everyone who is interested in protecting information and systems. Author, B. A. Ganja is an experienced information technology professional, and his in-depth knowledge and practical experience are reflected in the pages of the book. It not only shares theoretical foundations, but also offers practical recommendations to the reader, which makes the material accessible and understandable even for those who are just starting their way in this complex but fascinating field. The book covers a wide range of topics, such as the basic principles of information security, methods of data protection, as well as modern approaches to ensuring the reliability of computer systems. Ganja focuses on the importance of an integrated approach to security, addressing both technical and organizational aspects. The reader will be able to learn about different types of threats, such as viruses, hacker attacks and data leaks, as well as ways to prevent them and minimize the consequences. One of the key topics raised in the book is the need to build a safety culture in organizations. Ganja emphasizes that technology alone cannot guarantee protection if employees are not aware of the importance of complying with security measures. This makes the book particularly valuable for executives and managers who seek to create a safe working environment for their teams. The book will be of interest not only to specialists in the field of information technology, but also to a wide range of readers, including students, teachers, as well as everyone who wants to protect their personal data in the digital era. The age category of readers varies from high school students to professionals working in the field of IT. The topics covered in the book are relevant to anyone who uses computer systems in their daily lives. The author's style is distinguished by clarity and accessibility of presentation, which allows the reader to easily assimilate complex concepts. Ganja uses many examples from real practice, which makes the material not only theoretically sound, but also practically applicable. His previous work has also been noted by readers for its in-depth analysis and practical focus, and this book is no exception. “Information security and computer system reliability” is not just a textbook, but a real reference book for anyone who wants to be aware of current trends in information security. Readers interested in topics such as cybersecurity, data protection, and system reliability will find many useful tips and recommendations in this work. If you are looking for information on how to protect your data on the Internet, how to ensure the security of your company or just want to be aware of modern threats in the digital world, this book will become your reliable guide. Do not miss the opportunity to learn more about how to protect yourself and your systems from potential threats, and immerse yourself in the fascinating world of information security with B. A. Ganja.