“Entertaining geometry” by Yakov Isaacovich Perelman is not just a book about geometry, but a real find for anyone who wants to look at mathematics from a new perspective. Known for its fascinating and accessible explanations of complex mathematical concepts, Perelman offers readers a unique journey into the world of geometry, saturated with interesting problems, puzzles and historical anecdotes. This book will be a real discovery for both schoolchildren and adults who want to refresh their knowledge or just enjoy solving mathematical problems. In Entertaining Geometry, Perelman addresses the very basics of geometry, but does so in such a way that even the most complex topics become comprehensible and fascinating. It uses vivid examples and illustrative illustrations to demonstrate how geometry permeates our daily lives. Readers will be able to learn about the various figures, their properties and applications in the real world, as well as how geometric principles underlie architecture, art and even nature. This book will be interesting not only for schoolchildren and students, but also for everyone who wants to develop their analytical abilities and learn to think logically. It is suitable for both lovers of mathematics and for those who have always considered it something boring and difficult. Perelman masterfully demonstrates that mathematics can be not only useful, but also entertaining. Readers who like to solve puzzles will be delighted with the many tasks offered by the author. Each of them is not just an exercise, but an opportunity to immerse yourself in the world of logic and creativity. The topics raised in the book cover a wide range of issues, from simple geometric shapes to more complex concepts such as symmetry and topology. Perelman not only teaches, but also inspires, showing how geometry can be associated with art, nature, and even philosophy. He emphasizes the importance of geometric thinking, which helps to develop creativity and a non-standard approach to solving problems. Perelman’s style is unique: it combines scientific rigor and a lively, fascinating language. His books are always full of humor and irony, which makes them easy to read and enjoyable. Yakov Isaacovich is the author of many other well-known works, such as “Entertaining Mathematics” and “Entertaining Physics”, which also deserve attention. His ability to explain complex things in simple language makes his work a real bestseller among science lovers. "Entertaining geometry" is not just a textbook, but a real encyclopedia for lovers of mathematics It can be a great gift for schoolchildren, students, as well as adults who want to expand their horizons and learn to think more flexibly and creatively. If you are looking for something that will help you look at mathematics from the other side, this book will be your faithful companion in the world of geometry. Do not miss the opportunity to plunge into the world of fascinating mathematics with Jacob Isaacovich Perelman . "Entertaining geometry" is a book that will not only enrich your knowledge, but also give a lot of pleasant moments related to solving puzzles and tasks. Prepare for the fact that you will not only learn, but also get real pleasure from the process of learning!