Theoretical Physics . In 10 volumes. Volume 04. Quantum Electrodynamics is an outstanding work written by two great minds of the 20th century, Leva Davidovich Landau and Yevgeny Mikhailovich Lifshits .. This volume is part of an extensive and deeply thought-out course in theoretical physics, which over the years has served as a reference book for students, graduate students, and professionals in physics and related disciplines. Quantum electrodynamics (QED) is a branch of theoretical physics that studies the interaction of light and matter at the quantum level. In this volume, the authors immerse the reader in a world of complex and exciting concepts such as photonic fields, particle interactions, and renormalization. Landau and Lifschitz masterfully explain complex ideas using clear and accessible language, making their work indispensable for anyone seeking to understand the basics and intricacies of quantum electrodynamics. This book will be especially interesting for senior physics students, graduate students and teachers, as well as anyone who is passionate about modern physical theories. If you are looking for a deep understanding of quantum mechanics and electrodynamics, then this volume will become a real storehouse of knowledge for you. Readers interested in topics such as theoretical physics, quantum mechanics and electrodynamics will find in this book many useful ideas and concepts that will help expand their horizons. The topics raised in the book cover a wide range of issues, such as the nature of light, the interaction of particles, and the philosophical aspects of quantum theory. Landau and Lifschitz not only present mathematical formulas and theorems, but also discuss their physical meaning, which allows the reader not only to remember the material, but also to understand its essence. This makes the book especially valuable for those who want not just to learn formulas, but to consciously approach the study of physics. The style of the authors is distinguished by clarity and logical presentation, which allows even complex topics to be perceived with ease. Landau and Lifschitz are known for their ability to explain difficult concepts in simple language, which makes their work available to a wide audience. In addition, their approach to learning is based on a deep understanding of the subject and the desire to transfer this knowledge to others. This volume is no exception - it is full of examples, tasks and illustrations that help to better assimilate the material. Theoretical Physics . In 10 volumes. Volume 04. Quantum Electrodynamics is part of a larger cycle that includes such well-known works as Classical Mechanics, Thermodynamics and Statistical Physics, and Quantum Mechanics. Each volume is an independent work, but together they form a complete picture of theoretical physics, allowing the reader to consistently delve into the study of this fascinating science. If you are looking for books on physics that will help you understand complex concepts and expand your knowledge, "Theoretical Physics. In 10 volumes. Volume 04. Quantum electrodynamics” will be a great choice for you This work will not only enrich your scientific baggage, but will also inspire further research in the field of physics. Read, explore and discover the world of quantum electrodynamics with Landau and Lifshitz!