Book 1157 Ultradispersed environments. Production of nanopowders by chemical dispersing and their properties" by Ryzhonkov D. and . , Levine B. In. , Jijiguri E. L. and others is a unique tutorial that immerses the reader in the world of nanotechnology and chemical dispersion. This work will become an indispensable assistant for students, graduate students and specialists in the field of chemistry, materials science and engineering, seeking to deepen their knowledge about modern methods of obtaining nanopowders and their properties. The book begins with the basics, explaining what ultrafine environments are and why they play an important role in modern technology. The authors consider in detail the process of chemical dispersion, which allows to obtain nanoparticles with specified characteristics. The reader will learn about various synthesis methods, their advantages and disadvantages, as well as how to choose the right method depending on the goals of the research or production process. This aspect makes the book particularly useful for practitioners working in laboratories or in manufacturing. One of the key topics raised in the book is the effect of particle size on their physical and chemical properties. The authors explain in detail how a change in the size of nanoparticles can lead to a change in their reactivity, strength and other characteristics. This knowledge is especially relevant for those involved in the development of new materials, such as catalysts, coatings or composites, where the properties of the final product directly depend on the properties of nanocomponents. The book also contains many examples and illustrations, making complex concepts more easily understood. The authors use a living and accessible language that allows the reader to easily perceive information, even if he is not an expert in the field. This makes the manual suitable for both students and more experienced professionals wishing to refresh their knowledge or familiarize themselves with new methods. It is important to note that the authors of the book are a team of professionals with significant experience in the field of chemistry and nanotechnology. Their previous work and research in this area has already proven to be of high quality and relevant. This creates additional value for the reader, who can be sure of the reliability and relevance of the information provided . The book will be interesting not only for students and graduate students, but also for practicing engineers, researchers and teachers working in the field of materials science, chemistry and physics .. It can be the main training tool for courses on nanotechnology, as well as a useful resource for research and development of new technologies. If you are looking for information on how to get nanopowders, what methods exist and how they affect the properties of materials, then “No1157 Ultradispersed Mediums” will be your reliable guide in this fascinating and rapidly developing world. This book will not only expand your knowledge, but also inspire new ideas and discoveries in the field of nanotechnology.