The book "General course of enrichment of ores of non-ferrous metals" by Sergey Ivanovich Polkin is a unique work that immerses the reader in the world of mining and metallurgy, revealing all the subtleties and nuances of enrichment of non-ferrous metals. This is not just a textbook, but a real encyclopedia of knowledge for students, specialists and everyone who is interested in this complex but fascinating area. Sergey Ivanovich Polkin is a well-known Russian scientist and practitioner in the field of mining, who during his career managed to accumulate a wealth of experience and knowledge. His work has always been distinguished by depth of analysis and practical focus. In this book, the author shares his knowledge about the processes of ore enrichment, ranging from theoretical foundations to practical methods used in modern conditions. The reader will be able to learn about various technologies used for the extraction of non-ferrous metals, such as copper, lead, zinc and many others, as well as about current trends in this field. The book will be of interest not only to students of mining universities, but also to practicing engineers, metallurgists and anyone who wants to expand their knowledge of the processes taking place in the mining industry. It will be an indispensable tool for those who seek to understand how to effectively use natural resources, as well as for those who are interested in sustainable development and ecology in the context of mining and processing of minerals. The topics raised in the book cover a wide range of topics, from geology and mineralogy to ore enrichment and processing technologies. Polkin elaborates on techniques such as flotation, gravitational enrichment, and magnetic separation, focusing on their advantages and disadvantages. It also discusses the impact of various factors on enrichment efficiency, including the composition of the ore, process conditions, and equipment used. These aspects make the book relevant and useful for professionals working in this field. The author's style is distinguished by clarity and accessibility, which allows even those who do not have deep knowledge in the mining industry to easily absorb material. Polkin uses many examples from practice, which makes reading not only informative, but also fascinating. His approach to the presentation of the material allows the reader not only to remember the information, but also to understand its application in real conditions. In addition to the "General course of enrichment of ores of non-ferrous metals", Sergei Ivanovich Polkin is the author of a number of other significant works devoted to mining and metallurgy. His work is highly regarded both in Russia and abroad, and they become the basis for many training courses and studies. If you are looking for a book that will help you to understand the processes of enrichment of non-ferrous metals, or want to expand your knowledge in the field of mining, "General course of enrichment of non-ferrous metals ores" will be an excellent choice. This book will not only enrich your knowledge, but also inspire new ideas and projects in the field of metallurgy. Do not miss the opportunity to touch a world where science and practice come together to achieve sustainable and efficient use of natural resources.