The book "Technological and Energy Calculations in the Processing of Polymers by Extrusion" by Yu. and . Litvinets is an indispensable work for everyone who is interested in modern technologies for processing polymeric materials . In an era when sustainable development and innovative technologies are becoming the most important aspects of the industry, this edition opens the door for the reader to the world of extrusion - one of the most common and effective methods of processing polymers. In his book, the author examines in detail the key aspects of technological and energy calculations necessary for successful extrusion of polymers. Litvinets shares his knowledge and experience, offering readers not only theoretical foundations, but also practical recommendations that will help optimize the processing processes. Readers will be able to learn about the different types of extruders, their design and operating principles, as well as the factors that affect the quality of the final product. This book will be especially useful for students and graduate students of technical specialties, as well as for practicing engineers and technologists working in the field of polymer processing. If you are engaged in the development of new polymer materials or want to improve existing technologies, the "Technological and energy calculations in the processing of polymers by extrusion" will be a real guide for you. It will also be of interest to those working in the field of ecology and sustainable development, because polymer processing plays an important role in reducing the negative impact on the environment. The topics raised in the book cover a wide range of issues: from the choice of materials and their properties to the calculations necessary to optimize production processes. Litvinets emphasizes the importance of accurate calculations, which can significantly affect production efficiency and product quality. He also discusses current trends in polymer processing, including the use of alternative energy sources and the introduction of environmentally friendly technologies. The author's style is distinguished by clarity and accessibility, which makes the material easy to understand even for those who are just beginning to get acquainted with this topic. Lithuanian not only shares his knowledge, but also inspires readers to find new solutions and ideas His previous works, such as “Basics of polymer processing” and “Modern technologies in the polymer industry”, have already established themselves as valuable sources of information in this field. The book “Technological and Energy Calculations in the Processing of Polymers by Extrusion” is not just a textbook, but a real find for anyone who wants to deepen their knowledge and skills in the field of polymer processing. It will become a reliable assistant in your professional path, helping you to cope with the challenges that modern industry puts before us. If you are looking for information about polymer recycling, extrusion, process calculations or energy efficiency, this publication should definitely take place on your shelf. Do not miss the opportunity to immerse yourself in the world of polymers and discover new horizons in their processing!