Book «Physics: manual: at 2 h. H. 2: Optics. Quantum Physics . Structure and physical properties of the substance” by the author and . and . Tashlykov-Bushkevich is not just a textbook, but a real find for students, graduate students and anyone interested in physics at a deeper level. The second volume of this manual immerses the reader in the exciting world of optics and quantum physics, revealing the fundamental principles that govern our reality. In the first part of the book, the author examines optics in detail, ranging from classical concepts, such as refraction and reflection of light, to more complex topics related to interference and diffraction. Tashlykov-Bushkevich masterfully explains how light behaves in different environments, and how this knowledge can be applied in real life, for example, in optical devices and technologies. The reader will be able to understand how lenses, prisms and even lasers work, which makes this part of the manual especially valuable for future engineers and physicists. In the second part of the book, the author moves on to quantum physics, opening up a completely new level of understanding of matter to the reader. Concepts such as wave-particle dualism, the uncertainty principle, and quantum entanglement. are discussed here. Tashlykov-Bushkevich not only explains the theoretical aspects, but also gives many examples from modern science, which makes the material more accessible and understandable. This part of the book will be especially interesting for those who want to understand the basics of quantum mechanics and its applications in modern technologies, such as quantum computers and cryptography. The book "Physics" will become an indispensable assistant for senior students of physical and mathematical faculties, as well as for teachers who want to update their knowledge and find new approaches to learning. It will also be of interest to everyone who is fond of science and wants to understand more deeply how the world works at the microscopic level. Tashlykov-Bushkevich uses an accessible and understandable language, which makes complex topics easier to perceive. His writing style combines scientific rigor and fascination, which allows the reader not only to learn, but also to enjoy the process. The author also actively uses illustrations and diagrams, which helps to visualize complex concepts and makes the material more visual. The book raises important topics such as the interaction of light and matter, the nature of quantum phenomena, and their impact on our understanding of the physical world. These questions are relevant not only for scientists, but also for a wide audience interested in the latest achievements of science. If you are looking for a physics textbook that will not only help you prepare for the exams, but also open up new horizons of knowledge, then “Physics: a textbook: at 2 h. H. 2: Optics. Quantum Physics . The structure and physical properties of matter" is exactly what you need. Do not miss the opportunity to immerse yourself in the world of science with this fascinating and informative guide!