Book 940 Systems Theory and its Applications. H. 1", written by the author's team as part of E. A. Drilling, M. B. Borovikova, A. A. Dushechkin and others, is a fascinating and in-depth study in systems theory that will become an indispensable tool for students, graduate students and professionals in various fields of science and technology. This work is not just a textbook, but a real encyclopedia of knowledge that opens doors to the world of system thinking and its practical applications. In the pages of this book, the reader immerses himself in the foundations of systems theory, studying the key concepts and principles that underlie the functioning of complex systems. The authors masterfully explain how a systematic approach can be applied to a wide variety of fields: from engineering and economics to biology and sociology. This makes the book relevant to a wide audience interested in both theoretical aspects and practical applications of system analysis. Who can like this work? First of all, it will be interesting for students of technical and natural sciences specialties, as well as graduate students and teachers who want to deepen their knowledge in the field of system analysis . In addition, the book will be useful to practicing engineers, researchers and managers seeking to optimize processes and improve the efficiency of their projects. If you are interested in mathematics, physics or computer science, then this publication will be a real find for you. The topics raised in the book cover a wide range of issues, including systems modeling, analysis of their behavior, and optimization. The authors pay attention to both theoretical foundations and practical methods, which allows the reader not only to understand how the system works, but also to learn how to apply this knowledge in practice. An important aspect is also the discussion of modern technologies and their impact on the development of systems theory, which makes the book relevant in the context of a rapidly changing world. The style of the authors is clear and accessible, which allows even complex concepts to be explained in simple and understandable language. They use many examples and illustrations, which makes the material more visual and easy to perceive. This is especially important for readers who may be far from theoretical research, but want to understand how a systematic approach can help in solving real-world problems. Book 940 Systems Theory and its Applications. H. 1" is the first part of a larger project that promises to deepen and expand readers' knowledge in this area. In the future, it is planned to release a sequel that will cover more specialized topics and delve into details, which makes the first part especially valuable for those who want to prepare for further study. If you are looking for literature that combines theory and practice, as well as opens new horizons in understanding complex systems, then this book will become a real treasure for you. It will not only enrich your knowledge, but also inspire new ideas and projects. Do not miss the opportunity to immerse yourself in the world of system thinking with "No940 System Theory and its Applications. H. 1"!