The book "Optimization of the range of multi-product products and modeling of multi-product chemical engineer" is a unique publication created by a team of authors that offers a deep and comprehensive analysis of topical issues in the field of chemical technology and assortment management. This work will become an indispensable assistant for students, graduate students, teachers, as well as practitioners in the field of chemical and technological engineering. In today's world, where competition in the market of chemical products is becoming more acute, optimization of the range of multiple products is becoming a key success factor for enterprises. The authors of the book offer readers not only theoretical foundations, but also practical recommendations for effective range management. They consider different approaches to modeling multi-product processes, which allows a deeper understanding of how to properly organize the production and distribution of chemical products. One of the main themes of the book is the importance of integrating modern optimization methods into assortment management processes. The authors emphasize that the right choice and combination of products can significantly increase the competitiveness of the company. Readers will be able to familiarize themselves with the methods of demand analysis and forecasting, which will help them make more informed decisions in the face of market uncertainty. The book will be especially interesting to those who are fond of chemical technology, as well as those who work in the field of production process management. It is suitable both for students studying relevant disciplines and for experienced professionals seeking to update their knowledge and skills. Thanks to an accessible language and a clear structure, even complex concepts become understandable and easy to perceive. The style of the authors is distinguished by clarity and logical presentation, which makes reading not only useful, but also fascinating. They use many examples from real practice, which allows the reader to see how theoretical knowledge is applied in life. The book also includes graphs, tables, and diagrams that help visualize the information presented. In addition to the main content, the book raises important topics such as sustainable development and environmental safety in the chemical industry. The authors focus on how optimising the range can contribute to reducing the negative impact on the environment. This makes the book relevant not only for business, but also for everyone who cares about the future of our planet. If you are looking for literature that will help you understand the complex issues of optimization and assortment management in chemical technology, then "Optimization of the range of multi-product products and modeling of multi-product chemical technologist" will be a real find for you. This publication will not only enrich your knowledge, but also inspire new ideas and approaches in your professional activities. Thus, the book is a valuable resource for anyone interested in chemical technology and range management. It will help you expand the horizons of knowledge and learn how to put them into practice, which will certainly be an important step towards professional success. Do not miss the opportunity to immerse yourself in the world of multi-product chemical technologies and optimization of the assortment - this will be a fascinating and useful journey!