The book "Mathematical description of plastic processing processes" under the authorship of M. A. Sherysheva and the team of authors is a unique textbook that will become an indispensable assistant for students, graduate students and specialists in the field of chemical technology and materials science .. In this edition, readers will find a deep dive into the world of plastics recycling, where mathematics and physics combine to solve practical problems. From the first pages of the book, the authors set a goal not only to explain the theoretical aspects of plastic processing, but also to show how mathematical models can be used to optimize these processes. The reader will get acquainted with the basics of mathematical modeling, which allows predicting the behavior of polymers under different processing conditions. This knowledge becomes especially relevant in light of current challenges related to ecology and resource efficiency. The book will be of interest not only to students of technical specialties, but also to practicing engineers working in the field of polymer processing. It is suitable for those who seek to deepen their knowledge of extrusion processes, injection and other methods of plastic processing. Readers interested in chemistry, physics and engineering will find in this manual a lot of useful information that will help them in scientific research and practical activities. The topics raised in the book cover a wide range of issues, ranging from the basics of polymer chemistry to complex mathematical models describing recycling processes. Particular attention is paid to such aspects as thermodynamics, mechanics and kinetics of processes, which allows the reader to get a holistic view of how changes in materials occur at the molecular level. This makes the book not only a tutorial, but also a valuable reference for professionals working in this field. The author's style is distinguished by clarity and accessibility of presentation, which allows even beginners in the field of chemical technology to easily assimilate complex concepts. M. A. Sheryshev, known for his scientific works and publications, created in this manual a synthesis of theory and practice, which makes it especially valuable for readers. His other works are also devoted to polymer processing and may be of interest to those who want to deepen their knowledge in this area. In addition, the “Mathematical description of plastics processing processes” is relevant in the context of current trends in the field of sustainable development and ecology. In the face of global climate change and the need to transition to more environmentally friendly technologies, understanding the processes of plastic processing is becoming especially important. The book offers readers not only theoretical knowledge, but also practical recommendations for optimizing processes, which can contribute to reducing the negative impact on the environment. In conclusion, the “Mathematical description of plastic processing processes” is not just a textbook, but a real find for everyone interested in modern polymer processing technologies. It will become a reliable companion in training and professional activities, opening up new horizons for the study and application of mathematical models in chemical technology. If you are looking for quality plastic recycling literature, this book should definitely take its rightful place on your shelf.