Calibration Theory of Dislocations and Disclinations by Kadich A. and Edelen D. , is a deep and fascinating study in the field of materials science and solid state physics. This work not only immerses the reader in the complex world of dislocations and disclinations, but also opens new horizons for understanding the mechanical properties of materials, which makes it indispensable for students, graduate students and specialists in this field. The book focuses on dislocations defects in the crystal lattice that play a key role in determining the mechanical properties of materials. The authors offer readers a unique approach to the study of these phenomena, using calibration methods that allow more accurate description and analysis of the behavior of materials under the influence of various loads. This makes the book especially relevant for those interested not only in theory but also in the practical aspects of the application of knowledge in engineering and materials science. Kadich and Edelen masterfully combine theoretical foundations with practical examples, which allows the reader not only to understand complex concepts, but also to see their application in real-world conditions. The book will be of interest to both students of technical specialties and experienced specialists working in the field of mechanics, physics and materials science .. It will be an excellent addition to the library of any engineer, physicist or researcher seeking to expand their knowledge of the properties of materials. The topics raised in the book go beyond purely scientific analysis. The authors discuss the influence of dislocations and disclinations on the processes of deformation and destruction of materials, which is of great importance for the development of new, more durable and resistant to external influences of materials. This makes the book relevant not only for theorists, but also for practitioners working in industries such as engineering, construction, and aerospace. The style of presentation of Kadich and Edelen is clear and accessible, which allows readers to easily assimilate even the most complex concepts. Their approach to explaining theoretical foundations is supported by many illustrations and graphs, which makes the material more visual and understandable. The authors not only share their knowledge, but also inspire readers to further research in this fascinating field. In addition, the book Calibration Theory of Dislocations and Disclinations may be of interest to those looking for literature on related topics, such as material mechanics, crystallography, and solid state physics. It will be a great addition to such works as "Physics of a solid body" L. D. Landau and E. M. Lifshitz or "Material Mechanics" F. P. Bondar . In conclusion, the Calibration Theory of Dislocations and Disclinations is not just a textbook, but a real find for anyone who seeks to better understand the mechanical properties of materials and their behavior under load. The book opens new horizons for research and practical application of knowledge, and certainly deserves the attention of anyone interested in this exciting and important topic.