The book "Application of mathematical methods and computers in the national economy" by Harutyunyan A. is a fascinating and in-depth study that opens up the world of mathematical modeling and computational technologies in the context of economics and management to the reader. In this work, the author not only shares his knowledge, but also offers the reader a unique look at how modern mathematical methods can be used to solve complex problems facing the national economy. The book focuses on the use of mathematical models and computers to optimize processes in various sectors of the economy. Harutyunyan A. Masterfully demonstrates how algorithms and mathematical calculations can improve production efficiency, improve resource management, and minimize costs. The reader is immersed in a world where mathematics becomes not just an abstract science, but a powerful tool that can change the approach to the management of economic systems. This book will be of interest to a wide range of readers: from undergraduate and graduate students studying economics and mathematics, to practitioners and managers seeking to improve their skills in data analysis and process optimization. It can become a reference book for those who want to understand how mathematical methods can be applied in real life, as well as for those who are interested in modern technologies and their impact on the economy. The topics raised in the book cover many aspects, from game theory and statistical analysis to forecasting and optimization techniques. Harutyunyan A. not afraid to delve into complex concepts, making them accessible to understanding. It shows how mathematical methods can help in making informed decisions, as well as in developing strategies to achieve set goals. In this context, the book becomes not only a tutorial, but also a practical guide that can be useful in everyday activities. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily absorb even the most complex topics. Harutyunyan A. uses many examples and illustrations that help to demonstrate the use of mathematical methods in practice. His approach to teaching and explaining material makes the book not only informative, but also fascinating. In addition, the author is a well-known specialist in his field, and his works have already established themselves as valuable sources of knowledge. His other works include Mathematical Methods in Economics, which is also popular among students and practitioners. Readers interested in mathematics and its application in economics will find in these books much in common and useful. “The application of mathematical methods and computers in the national economy” is not just a book, but a whole world in which everyone who wants to understand how mathematics and technology can change our understanding of economics and management should immerse themselves. It inspires new ideas and approaches, encourages reflection and, of course, leaves a mark in the minds of every reader. If you are looking for literature that combines theory and practice, as well as opens new horizons in understanding economic processes, then this book will be a real find for you.