Book 545 Determination of the phase composition and structure of ultrafine materials: study. E. L. Jijiguri, W. In. Levine and M. G. Krasheninnikova is an important work that immerses the reader in the world of modern material studies. This manual not only serves as teaching material for undergraduate and graduate students, but will also be useful to practitioners working in the field of physics and chemistry of materials, as well as engineers and researchers engaged in the development of new technologies. The book covers a wide range of topics related to the determination of the phase composition and structure of ultrafine materials, making it an indispensable source of knowledge for anyone interested in modern scientific achievements in this field. Ultra-dispersed materials with unique properties are used in various industries, from medicine to electronics, and their study is becoming increasingly relevant in the light of scientific and technological progress. The manual discusses in detail the methods of analysis and characteristics of ultrafine materials, including X-ray diffraction, electron microscopy and other modern analytical techniques. The authors share their knowledge and experience, which allows the reader not only to understand the theoretical foundations, but also to master the practical aspects of working with such materials. The book is full of examples, illustrations and diagrams, which makes complex concepts more accessible and understandable. E. L. Jijiguri, W. In. Levine and M. G. Krasheninnikov are well-known specialists in the field of materials science, and their authority in the scientific community gives additional value to this educational tool. Their previous work has also been highly praised, and readers can expect a similar level of depth and professionalism from this book. The style of the authors is clear and logical, which makes it easy to absorb information, even if you are not an expert in this field. The book will be of particular interest to students of technical and natural sciences, graduate students, as well as anyone who seeks to expand their knowledge of modern materials and their application. It will be an excellent addition to training courses in materials science, physics and chemistry, and will also be useful for researchers working on projects related to new materials. The topics raised in the book cover not only scientific aspects, but also practical applications of ultrafine materials in industry and medicine. Readers will be able to learn about how these materials can improve the properties of products, what innovative technologies are developed on their basis and what prospects are open for future research. This makes the book not only a textbook, but also a source of inspiration for those who want to contribute to the development of science and technology. 545 Defining the Phase Composition and Structure of Ultrafine Materials is not just a book, but a world of possibilities for those who want to be at the forefront of scientific discovery. If you are looking for an in-depth understanding of ultrafine materials and their characteristics, this guide will be your reliable companion in this fascinating journey.