The Theory of Communications and Radio Engineering by B. Z. Semenova is a fascinating and deep immersion into the world of radio engineering and modern means of communication. For students, graduate students, engineers and anyone interested in this field, this publication will be an indispensable source of knowledge and practical recommendations. In his book, Semenov explores key aspects of communication theory, from the basics of radio engineering to the modern technologies that shape our perception of information. The author not only outlines theoretical concepts, but also illustrates them with practical examples, which makes the material accessible and understandable. The reader will be able to learn about the principles of operation of various radio systems, features of their design and operation, as well as about new trends in the field of communication, such as 5G and the Internet of Things. This book will be of particular interest to those seeking to expand their knowledge in the field of radio engineering and communications. Students of technical universities, graduate students, as well as practicing engineers will find in it useful ideas and solutions that can be applied in their work. In addition, the book will be useful for those who want to understand the complex aspects of radio communication and understand how these technologies affect our daily lives. The topics raised in the book cover a wide range of issues, including modulation principles, data transfer methods, and communication reliability and security issues. Semenov emphasizes the importance of radio engineering in modern conditions, when information becomes one of the most valuable resources. The book helps the reader to understand how radio systems affect various areas of life - from medicine to business, from education to entertainment. The author’s style is distinguished by clarity and logical presentation . B. Z. Semenov is an experienced specialist in the field of radio engineering, and his knowledge and experience make this book not just a textbook, but also a real guide to the complex world of radio communication. He is also the author of other well-known works that have earned recognition in the scientific community, which confirms his authority and professionalism. If you are looking for literature that will help you understand modern communication technologies, the Theory of Communication and Radio Engineering will be an excellent choice. This book will not only enrich your knowledge, but also inspire new ideas and projects. Readers interested in topics such as radio, telecommunications, as well as modern technology, will definitely appreciate