The book "Applied Optics" by O. In. Grasshopper is a fascinating and deep dive into the world of optical technology, which will be an indispensable tool for both students and professionals in the field of physics, engineering and related disciplines. In this work, the author, with a wealth of experience and knowledge, shares his thoughts on how optics affects our lives and what opportunities open up for humanity. From the first pages of the book, the reader is immersed in the exciting world of light and its properties. About. In. Grasshopper masterfully explains complex concepts, making them accessible and understandable. He deals with such important topics as refraction and reflection of light, optical devices, lasers and their application in various fields. The book not only explains the theoretical aspects, but also offers practical examples, which makes the material especially valuable for those who want to put knowledge into practice. "Applied optics" will be of interest to a wide range of readers. Students of technical and natural sciences, graduate students, as well as practicing engineers and scientists will find a lot of useful information in it. The book is suitable for those who are interested in physics, engineering, as well as those who want to expand their knowledge in the field of optics and its application in modern technologies. If you are looking for literature that will help you better understand how optical systems work and what innovations await us in the future, then this work will be a real find for you. The topics raised in the book cover not only theoretical aspects, but also the practical application of optics in various industries. The author addresses issues related to medical optics, optical technologies in connection with information systems and even in the field of art. The reader will be able to see how optics penetrates into everyday life and how it changes our perception of the world. Grasshopper raises important questions about the future of optical technologies, their impact on science and society, which makes the book relevant and meaningful. Style O. In. It is clear and logical .. He knows how to explain complex things, which makes his work easy to understand. The author also actively uses illustrations and diagrams that help to better understand and visualize the phenomena described. This makes "Applied Optics" not only a textbook, but also a real visual guide to the world of light and its properties. Except for "Applied Optics", O. In. Grasshopper is the author of other well-known works on physics and engineering. His books are popular among students and professionals, which indicates a high level of trust in his knowledge and experience. If you are interested in such works as “Physics for Engineers” or “Basics of Optical Technology”, then “Applied Optics” will be an excellent addition to your library. Finally, "Applied Optics" O. In. Grasshopper is not just a book about science, it is an exciting journey into the world of light and its possibilities. It is able to inspire the reader to new discoveries and research, as well as expand the horizons of understanding optical technologies. If you want to know how optics affects our lives and what prospects open in this area, do not miss the chance to get acquainted with this wonderful work.