The book "Economic-mathematical dictionary", written by Lopatnikov L. and . , is a unique publication that will become an indispensable assistant for students, graduate students, teachers and practitioners in the field of economics and mathematics. This edition is not just a dictionary in the traditional sense, but a real encyclopedia of knowledge that combines theoretical and practical aspects of economic and mathematical methods. The dictionary covers a wide range of terms, concepts, and methods used in economics and mathematics. Each definition is accompanied by examples and explanations, which makes the material understandable even to those who are just beginning their journey in these disciplines. Lopatnikov seeks not only to explain the terms, but also to show how they are applied in practice, which makes the book especially valuable for students and young professionals who want to deepen their knowledge and skills. The book will be of interest not only to those who study economics or mathematics, but also to those who work in related fields such as finance, statistics, management and data analytics. It will be an excellent help for those who want to learn how to use mathematical methods to solve economic problems, as well as for those who seek a deeper understanding of economic processes and phenomena. The age range of readers ranges from undergraduates to professionals working in economics and finance, making the Economic-Mathematical Dictionary a versatile tool for anyone looking to expand their horizons. The topics raised in the book cover a wide range of issues related to economic theory, mathematical modeling, statistics, and optimization. Lopatnikov emphasizes the importance of mathematical methods in modern economic analysis, emphasizing that without them it is impossible to adequately assess complex economic processes. The book also addresses issues related to economic statistics, game theory, optimal management, and many other relevant topics that make it relevant in a rapidly changing world. Lopatnikov's style is distinguished by clarity and logical presentation, which allows the reader to easily assimilate even the most complex concepts. The author is not only a professional in his field, but also an experienced teacher, which makes his approach to writing a book especially valuable. His previous works, such as Mathematical Methods in Economics and Statistical Methods of Data Analysis, have gained recognition among professionals and students, and the Economic and Mathematical Dictionary continues this tradition by offering the reader high-quality and relevant material. If you are looking for a book that will help you understand economic and mathematical terms, improve your skills or simply expand your knowledge, Lopatnikov’s Economic and Mathematical Dictionary will become your reliable companion. This edition will not only enrich your vocabulary, but also inspire new research and discoveries in the field of economics and mathematics. Do not miss the opportunity to take a step towards a deeper understanding of these important disciplines and discover the world of economic and mathematical research along with this wonderful book!