The book "Databases", written by a team of authors, is a fascinating and deep dive into the world of data management, which has become an integral part of modern society. With the rapid growth of the volume of information and the need for its effective processing, this publication becomes a desktop manual for both novice professionals and experienced professionals in the field of IT and software development. From the first pages, the reader finds himself at the center of a discussion of key concepts and technologies related to databases. The authors, with extensive experience and knowledge in this field, offer the reader not only theoretical foundations, but also practical examples that help to better understand how various database management systems (DBMS) function. Reading this book, you will be able to understand such important aspects as database design, normalization, working with SQL, as well as modern approaches to data storage and processing, including NoSQL and cloud technologies. The book will be interesting to a wide range of readers .. Students and graduate students studying computer science and related disciplines will find in it useful materials for preparing for exams and writing term papers . Specialists working in the field of software development will be able to update their knowledge and master new technologies that will help them in everyday practice. Even managers and business analysts seeking a better understanding of how data can be used to make better decisions will find the book full of useful ideas and recommendations. The topics raised in the Databases cover a wide range of issues, ranging from basic design and database architecture to modern trends in the field of big data and analytics. The book emphasizes the importance of the right choice of tools and technologies for working with data, and also focuses on the security and protection of information. These aspects are becoming particularly relevant in light of the growing cybersecurity threats and the need to comply with regulations and standards such as the GDPR. The style of the authors is distinguished by clarity and accessibility, which makes complex concepts understandable even for those who are just starting their way in the world of databases. The book is replete with illustrations, diagrams and examples, which allows the reader not only to absorb the material, but also to visualize it. This approach makes learning more fun and effective. It is worth noting that the team of authors includes recognized experts in the field of databases, which gives the book additional value. Their previous work and research in this field has already won recognition among professionals and students, and the “Data Bases” are becoming a logical continuation of their efforts to popularize knowledge about data. If you are looking for a book that will help you understand the complex but fascinating world of databases, Databases will be an excellent choice. It will not only expand your horizons, but also equip you with the necessary knowledge for a successful career in information technology. Do not miss the opportunity to immerse yourself in this exciting world, where data becomes the basis for decision-making and creating innovative solutions.