"Knowledge of the Complex" is an outstanding work written by G. Nicolis and E. Prigozhin, which immerses the reader in the world of complex systems and their dynamics . This book, published in 1989, remains relevant today, attracting the attention of both scientists and science lovers seeking to understand how the world around us functions. The authors, both prominent scientists, are known for their work in physics and chemistry, and Prigozhin, in particular, won the Nobel Prize for his research on the thermodynamics of non-equilibrium processes. In “Knowledge of Complexity,” they combine their knowledge to offer the reader a unique perspective on the nature of complex systems — from biological organisms to social structures and even economic models. The book begins with the foundations of the theory of complex systems, explaining how the interaction between elements can lead to the emergence of new properties that cannot be predicted based on the properties of individual components. This phenomenon, known as "emergence," becomes the central theme of the book. The authors use many examples from different fields of science to illustrate how complex systems can behave unpredictably and how this knowledge can be applied to solve real-world problems. "Knowledge of the complex" will be especially interesting to those who are fond of science, philosophy, sociology and even art. Students, graduate students and teachers working in the natural and social sciences will find in the book many useful ideas and concepts that will help them in their research and teaching. But also to a wide audience interested in questions how interactions between elements can form holistic systems, the book will also be useful and fascinating. The topics raised in the book concern not only scientific aspects, but also philosophical questions about the nature of reality. The authors ask questions about how we can understand complex systems, and how this understanding can change our perception of the world. They discuss how traditional methods of analysis based on linear models are often insufficient to describe real-world processes, and propose new approaches that take into account the complexity and dynamism of systems. The style of Nikolis and Prigogine is characterized by accessibility and clarity, which makes their ideas understandable even for readers who do not have deep knowledge in the field of science. They masterfully balance between scientific rigor and captivating storytelling, allowing the reader not only to learn, but also to enjoy reading. Their approach to explaining complex concepts makes "Knowledge of complex" not only a textbook, but also a real intellectual adventure. If you are looking for books that explore complex systems, you may be interested in works such as "Complexity: