Book «No1429 Mathematical modeling of information systems . Razd. : DBMS and relational data model" by H. A. Filipieva is a unique publication that will be a real find for everyone who is interested in modern information technologies and seeks to understand the principles of working with databases. With the rapid development of digital technologies and an increase in the volume of information, the ability to effectively model and manage data is becoming a necessary skill for specialists in various fields. In this book, the author examines in detail the key aspects of mathematical modeling of information systems, focusing on database management systems (DBMS) and relational data model .. Filipiev offers readers not only theoretical foundations, but also practical examples that will help them better absorb the material. It divides complex concepts into accessible and understandable parts, making the book suitable for both students and practitioners looking to update their knowledge. Who can like this publication? First of all, it will be interesting for students and postgraduates of the faculties of computer science, mathematics and applied mathematics, as well as for those who study information technology and programming . Software development specialists, data analysts, and system administrators will also find much useful information in the book. If you want to deepen your knowledge of relational databases, learn how to correctly model data and optimize their use, then this publication will become your reliable assistant. The topics raised in the book cover a wide range of issues related to the design and implementation of information systems. Filipev discusses the importance of choosing the right data model, as well as methods of optimizing them to improve performance It also addresses such pressing issues as data security, access management, and information security, making the book particularly valuable in light of current cybersecurity challenges. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily follow the course of thought and assimilate even the most complex concepts. N. A. Filipiev is an experienced teacher and researcher who has already managed to establish himself in the scientific community. His previous work has also been devoted to mathematical modeling and information technology, which confirms his in-depth knowledge and experience in this field. The book "No1429 Mathematical modeling of information systems" not only enriches the theoretical base of the reader, but also offers practical tools that can be used in real projects. Readers will be able to get acquainted with examples from practice, which will greatly simplify the learning process and help to better understand how to apply the knowledge gained in practice. If you are looking for literature that will help you understand the intricacies of working with relational databases and teach you how to model information systems, then this publication will be an excellent choice. It will not only expand your horizons in the field of information technology, but also inspire new ideas and projects. Do not miss the opportunity to deepen your knowledge and skills in this dynamically developing field!