The book "On the transformation of polyhedra" by B. F. Kagan is a fascinating and in-depth study in the field of geometry, which not only immerses the reader in the world of polyhedra, but also opens new horizons for understanding their transformations. In this work, the author masterfully combines theoretical aspects with practical examples, which makes the material available to both students and professionals involved in mathematics and related sciences. In. F. Kagan is a well-known Russian mathematician and teacher, whose work in the field of geometry and topology has been recognized both in scientific circles and among mathematics lovers. His style of presentation is clear and logical, which allows the reader to easily assimilate complex concepts. Kagan is also the author of other significant works, such as Geometry and its Applications, which are also noteworthy. "On the transformation of polyhedra" offers readers a unique opportunity to look into the world of three-dimensional geometry The book begins with the basics, explaining what polyhedra are and what their properties make them objects of study. However, Kagan does not stop at a simple description of the forms and their characteristics. It immerses the reader in the world of transformations, showing how polyhedra can change, transform and interact with each other. This creates an intriguing sense of dynamics and movement that is rare in mathematical texts. The topics raised in the book cover not only pure geometry, but also its applications in various fields of science and technology. Kagan discusses how polyhedron transformations can be used in architecture, computer graphics, and even biology. This makes the book especially valuable for those interested in the practical aspects of mathematics and its impact on the world around them. The book will be of interest not only to students and teachers, but also to everyone who is fond of mathematics, geometry and logic. It is suitable for both high school students and university students, as well as for professionals working in the field of science and technology. If you are looking for inspiration or want to deepen your knowledge in geometry, “On the transformation of polyhedra” will be a real find for you. Kagan uses many illustrations and graphs, which helps to visualize complex concepts and makes the learning process more fascinating. The reader will be able not only to understand, but also to see how transformations of polyhedra work in practice. This makes the book not only a textbook, but also a real source of inspiration for future mathematicians and engineers. In conclusion, "On the transformation of polyhedra" is not just a textbook, but a real encyclopedia of knowledge about polyhedra and their transformations. This book will be a reliable companion for all who seek to understand and master the world of geometry. If you are looking for something similar to the “Geometry of polyhedra” or “Fundamentals of geometry”, then work in. F. Kagan should definitely take a worthy place on your bookshelf. Do not miss the chance to discover the amazing world of polyhedra and their transformations!