The book "Practices on the course "General Theory of Systems" by B. In. Barkalina is a fascinating and deep dive into the world of system thinking, which will be a real find for students, teachers and anyone interested in complex systems and their interactions. In this practical guide, the author not only explains the basic concepts of general systems theory, but also offers the reader many practical tasks that will help to consolidate the knowledge gained and develop analysis skills. General systems theory is an interdisciplinary field that studies the principles of the organization and functioning of systems in various fields: from biology and ecology to sociology and economics. In. In. Barkalin, with a wealth of experience in this field, offers readers a unique approach to the study of theory that combines both theoretical foundations and practical examples. In the book you will find not only theoretical calculations, but also real cases that will help you better understand how to apply the knowledge gained in practice. Who may like this book? First of all, it will be of interest to students and graduate students studying systems analysis, project management or other related disciplines. It is also suitable for teachers who are looking for a high-quality teaching aid for their students. In addition, the book will be useful to specialists working in the field of management, engineering and even business, because system thinking is becoming increasingly relevant in the modern world, where complex systems and processes require an integrated approach. The topics raised in the book cover a wide range of issues related to systems analysis, including the interaction of system elements, the dynamics of change, and the sustainability of systems. In. In. Barkalin emphasizes the importance of understanding the system approach to solve the complex problems facing modern society. The book emphasizes that for the successful functioning of any system, it is necessary to take into account not only its individual elements, but also their relationships, which is a key point in system thinking. The author's style is distinguished by clarity and accessibility, which makes the material understandable even for those who are just starting their way in studying the general theory of systems. Barkalin skillfully combines theory with practice, which allows readers not only to assimilate information, but also to apply it in real situations. This makes the book not just a tutorial, but a real tool for developing analytical skills. If you’re looking for books that are similar in genre, take a look at the works of authors like Peter Senge with his “Fifth Discipline” as well as Daniel Kim’s “Systematic Thinking.” These works also explore concepts related to the systems approach and its application in various fields. The book "Practices on the course "General Theory of Systems" B. In. Barkalina is not just a textbook, but a whole world of opportunities for those who are ready to immerse themselves in the study of systemic thinking. It will help you not only to expand your knowledge, but also to learn to think more broadly, see relationships and find solutions in the most difficult situations. This edition will be an indispensable assistant for all who seek to understand how the world around us works, and how to effectively manage systems in various spheres of life.