The book “Database Technologies” by Sergey Pronkevich is a fascinating and deep immersion into the world of databases, which will become an indispensable tool for both novice specialists and experienced professionals in the field of information technology. With the rapid development of digital technologies and an increase in the amount of data that needs to be processed, understanding the basics and principles of working with databases is becoming critically important. Sergei Pronkevich, known for his scientific works and practical developments in the field of computer science, offers readers a unique look at modern technologies used for storing, processing and managing data. His book covers a wide range of topics, ranging from basic database design to more complex concepts such as distributed systems and cloud technologies. The reader will be able to learn about various types of databases, including relational, NoSQL and graph databases, as well as methods of their optimization and security. This book will be of particular interest to undergraduate and graduate students studying computer science, programming, and related disciplines. It will also attract the attention of IT practitioners, developers and system administrators seeking to deepen their knowledge and skills in data management. Pronkiewicz not only explains the theoretical aspects, but also shares practical examples and tasks that will help readers consolidate the knowledge gained. One of the key themes of the book is the importance of database design. Pronkiewicz focuses on how to properly structure data to achieve maximum efficiency and performance. It considers different approaches to normalization and denormalization, and discusses how to choose the right type of database depending on the specific tasks and requirements of the business. These aspects make the book useful for managers and business analysts who want to better understand how data can be used to make informed decisions. The book also touches on security and data protection issues, which in the face of modern cybersecurity threats is becoming especially relevant. Pronkiewicz offers readers strategies to protect information and prevent data breaches, making his work important for anyone working with sensitive information. The author's style is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. Pronkiewicz uses many illustrations, diagrams and examples from real practice, which makes the material more visual and understandable. Readers will appreciate his ability to explain complex things in simple language, making the book ideal for self-study and exam preparation. If you are looking for database books that will help you deepen your knowledge and skills, Database Technologies will be an excellent choice. This is not just a textbook, but a real find for anyone who wants to be one step ahead in the rapidly changing world of technology. The book will be useful to those interested in topics such as programming, data analysis, big data processing, and cybersecurity. In conclusion, Sergey Pronkevich’s Database Technologies is a must-read for anyone who wants to master the basics and modern approaches in the field of databases. This book will not only expand your knowledge, but also inspire new ideas and projects in the world of information technology. Do not miss the opportunity to become an expert in the field that determines the future of our digital society!