“Non-Euclidean Spaces” is a fascinating work written by the outstanding mathematician and popularizer of science Boris Alexandrovich Rosenfeld .. This book will be a real discovery for anyone interested in mathematics, physics and philosophy, as well as for those who want to immerse themselves in the world of non-traditional geometries and their application in various fields of knowledge. In his work, Rosenfeld explores the concept of non-Euclidean geometry, which is known to question the usual notions of space and form. The book begins with the basics, where the author explains what Euclidean geometry is and how it differs from non-Euclidean geometry. The reader is immersed in a world of geometric paradoxes and discoveries that have changed our perception of reality. Rosenfeld not only introduces us to the theoretical aspects, but also shows how these ideas find application in physics, astronomy, and even in philosophy. The book will be interesting not only for students and graduate students of mathematical and physical specialties, but also for a wide audience, including science lovers and those who just want to expand their horizons. If you are looking for literature that combines deep knowledge and accessible presentation, then “Non-Euclidean spaces” will become a real treasure for you. This book is suitable for both high school students and adult readers seeking to understand complex concepts in a simple and fascinating form. The topics raised in Non-Euclidean Spaces cover not only geometric aspects, but also philosophical reflections on the nature of space and time. Rosenfeld asks important questions about how we perceive the world around us, and how our ideas about geometry affect our understanding of physical reality. The reader will be able to think about how non-Euclidean geometry can change our perception of such concepts as infinity and multidimensionality. Rosenfeld's style is clear and logical, which makes his work accessible even to those who do not have a deep knowledge of mathematics. He masterfully combines scientific facts with living examples and illustrations, which helps the reader to better assimilate the material. Boris Alexandrovich is also known for his other works, such as "Introduction to Mathematical Logic" and "Geometry and its Applications", which also deserve attention and can complement your understanding of the topic. If you are looking for books similar in genre, pay attention to the works of authors such as Richard Feynman, Stephen Hawking and Niles Bohr. Their work also explores the frontiers of science and philosophy, opening new horizons for reflection. “Non-Euclidean Spaces” is not just a textbook, it is a real intellectual adventure book that invites the reader to an exciting journey through the world of geometry. It makes us think about how we perceive space and how this perception shapes our understanding of the world around us. Do not miss the opportunity to discover this fascinating and informative book, which will certainly be an important milestone in your intellectual development.