The book "Integrated Systems - 1", written by the author's team consisting of Dubrovin, Krichever and Novikov, is a fascinating and in-depth study in the field of mathematics and systems theory. This work will be a real discovery for students, graduate students and specialists interested in modern approaches to the integration of systems, as well as for everyone who seeks to understand complex mathematical concepts and their practical application. In the first part of the book, the authors immerse the reader in the world of integrable systems, starting with the basics and gradually moving to more complex topics. They explore how different mathematical models can be used to describe dynamic processes, and how these models can be integrated to produce more accurate and efficient solutions. The book not only outlines the theory, but also offers many examples, tasks and practical applications, which makes it especially valuable for those who want to not only study the material, but also apply it in practice. Readers who are fond of mathematics, physics, engineering or even economics will find many useful ideas and concepts in this book. It will be of interest to both students and professionals who want to deepen their knowledge in the field of integrated systems and learn how to apply this knowledge in their activities. The book is also suitable for those who are interested in modern methods of solving complex problems associated with dynamical systems. The topics raised in Integrable Systems 1 cover a wide range of issues, including sustainability analysis, numerical modeling techniques, and optimization. The authors emphasize the importance of integrating different approaches and methods, which allows the reader to see a holistic picture and understand how different aspects of mathematics are related to each other. This makes the book not only a textbook, but also a real source of inspiration for those who want to delve into the world of science and technology. The style of the authors is clear and accessible, which allows even complex ideas to be explained in simple and understandable language. Dubrovin, Krichevera and Novikov are known for their scientific works and pedagogical experience, which makes them authoritative figures in their field. Their previous works, such as Dynamic Systems Theory and Mathematical Methods in Physics, have also gained recognition and have become foundational for many students and researchers. “Integrated Systems 1” is not just a book, but a whole world into which the reader plunges with his head. It opens up new horizons and offers unique tools for understanding and solving complex problems. This work will become an indispensable assistant for all who seek knowledge and want to master modern mathematics in practice. If you are looking for literature that combines theory and practice, and inspires new ideas and discoveries, then “Integrated Systems 1” is what you need. Do not miss the opportunity to expand your horizons and deepen your knowledge in the field of integrable systems with this fascinating and informative work.