The book "Elements and details of optical devices" by P. In. Fedortseva is a fascinating and deep immersion into the world of optics and optical technologies. This publication will be especially interesting to those who seek to understand how various optical devices work, from simple magnifiers to complex telescopes and microscopes. The author, with extensive experience in the field of physics and engineering, shares his knowledge, making complex concepts available to a wide audience. The book discusses the key elements of optical systems, their design and principles of operation. Fedortsev not only explains how various optical devices function, but also delves into the details of their design and production. The reader will be able to learn about such important aspects as refraction of light, optical materials, as well as about modern technologies that are used to create high-quality optical devices. This book will be interesting not only for students and graduate students of technical specialties, but also for everyone who is fond of physics, astronomy and engineering. It will be an excellent tool for teachers and students who want to deepen their knowledge in the field of optics. It will also attract the attention of science lovers who want to understand how the devices they use in everyday life work, whether it is a smartphone camera or an optical sight. The topics raised in the book cover a wide range of issues, including the physical foundations of optics, the application of optical devices in various fields of science and technology, and the prospects for the development of optical technologies. Fedortsev emphasizes the importance of optics in the modern world, where it plays a key role in such areas as medicine, communications and astronomy. The book highlights how optical devices have changed our perception of the world and expanded the horizons of human cognition. The author's style is distinguished by clarity and accessibility, which makes complex topics understandable even for an unprepared reader. Fedortsev uses many examples and illustrations, which makes it possible to better absorb the material . His approach to explaining scientific concepts makes the book not only a textbook, but also a fascinating reading for anyone interested in science and technology. If you are looking for books on optics, physics or engineering that will help you expand your knowledge and understanding, “Elements and Details of Optical Instruments” will be an excellent choice. It can be not only a useful teaching tool, but also a source of inspiration for future engineers and scientists. In conclusion, Elements and Details of Optical Instruments is not just a book about science; it is a guide to a world where physics and technology intersect, creating amazing opportunities for exploration and discovery. R. In. Fedortsev, with his deep knowledge and passion for the subject, makes this path fascinating and accessible to all. Don’t miss the opportunity to learn more about how optics shape our world and how it can change our future.