"Physics Practices .". Part 3: Optics. Quantum and Atomic Physics” in the authorship of a team of talented specialists is an indispensable assistant for students, teachers and everyone who seeks to understand the mysteries of the surrounding world deeper through the prism of modern physics. This book is not just a textbook, but a real guide to the complex but incredibly fascinating sections of the science of light and matter that underlie modern technology and scientific discoveries. The focus of the "Physics Practice". Part 3" - optics, quantum and atomic physics - areas that have undergone revolutionary changes in recent decades The author’s team masterfully combines theoretical foundations with practical tasks that allow the reader not only to understand complex concepts, but also to apply them in practice. The book deals in detail with such topics as the nature of light, the wave properties of photons, interference and diffraction, as well as the quantum phenomena that underlie modern technologies - from lasers to quantum computers. Particular attention is paid to the experimental part: readers will be able to independently perform laboratory work, understand the principles of optical devices and master measurement methods, which makes the book especially valuable for students studying in technical universities and colleges. This part of the textbook is perfect for those who are interested not only in classical physics, but also in modern areas of science. It will be of interest to students, graduate students, teachers and enthusiasts who want to expand their knowledge of the structure of the atom, the properties of light and the quantum phenomena that underlie new technologies. The book is suitable for readers aged 16 years and older with basic knowledge of physics, and will be an excellent help in preparing for exams, Olympiads and scientific research. The peculiarity of this workshop is not only the saturation of the theory, but also the wealth of practical tasks that help to consolidate the material, develop the skills of experimental work and critical thinking. The book describes in detail the methods of experimenting, calculating and interpreting the results, which makes it a valuable tool for self-study and teaching. The style of presentation of the material is clear and accessible, the authors avoid complex terms without explanation, making complex concepts understandable even for those who are just beginning to get acquainted with quantum physics. "Physics Practices .". Part 3" is a part of the series that covers all the main sections of modern physics. Her authorial style, richness of practical tasks and modern approach make her a noteworthy textbook that not only expands her horizons, but also inspires further research. This book is an excellent choice for those who want to understand how our world works at the deepest level, and who are looking for practical skills to work with modern optical and quantum devices. If you are looking for a book that will help you uncover the secrets of light, atoms and quantum phenomena, understand the basics of laser technology or prepare for serious physics exams - "Physics Practices . Part 3" will be your reliable satellite. Its relevance is confirmed by the constant development of technology and scientific research, and the author’s team, which unites experienced teachers and scientists, created a manual that not only informatively, but also inspires new discoveries. This book is your key to understanding the most mysterious and amazing aspects of nature that underlie all modern science and technology.