The book "Complex Numbers and Their Application in Geometry" by I. M. Yagloma is a fascinating journey into the world of mathematics, which opens up amazing horizons for the reader. This work is not just a textbook, but a real find for anyone who wants to understand more deeply how complex numbers can serve as a powerful tool in geometry. Yaglom, known for his deep knowledge and ability to explain complex concepts, offers readers a unique perspective on this topic. From the first pages of the book, the reader plunges into the world of complex numbers, which, at first glance, may seem abstract and difficult to perceive. However, Yaglom masterfully guides us through all the subtleties and nuances, showing how these numbers can be not only useful, but also beautiful. He explains how complex numbers can be used to solve geometric problems, making them indispensable in various fields of science and technology. This book will be interesting not only for students and schoolchildren studying mathematics, but also for teachers who are looking for new approaches to explaining complex topics. It will also attract the attention of mathematics enthusiasts who want to deepen their knowledge and see how theoretical concepts are applied in practice. If you are interested in mathematics, physics, engineering or just want to expand your horizons, this book will be an excellent choice. Yaglom raises many topics that may be of interest to the reader. He considers not only the mathematical properties of complex numbers, but also their geometric interpretation. The book discusses in detail such concepts as the argument and the module of a complex number, as well as their relationship with the plane. The reader will learn how complex numbers can be used to describe rotations and transformations in geometry, which opens up new possibilities for solving problems. Yaglom's style is clear and accessible. He skillfully combines theory with practical examples, which allows the reader not only to assimilate the material, but also to apply it in practice. This makes the book not only useful, but also fascinating .. Jaglom is the author of many well-known works, such as "Geometry and its application" and "Mathematical notes", which also deserve attention. His ability to explain complex concepts in simple language makes his work a real gem in the world of scientific literature. The book “Complex Numbers and Their Application in Geometry” is not just a textbook, but a real find for those who want to see mathematics in a new light. It will help the reader not only to understand how complex numbers work, but also to learn how to apply them in various fields. If you are looking for a book that will inspire you to study mathematics and show how it can be beautiful and fascinating, then this work will be a real discovery for you. Do not miss the opportunity to immerse yourself in the world of complex numbers with E. M. Yaglom and discover new horizons in geometry and mathematics!