The book "Alexander Stepanovich Popov in the characteristics and memories of contemporaries", prepared by the team of authors, is a unique and deep look at one of the key figures of Russian science and technology - the inventor and scientist, whose name is forever associated with the development of radio engineering. This book is not just a biography or a collection of memoirs, but a lively and bright canvas that reveals the multifaceted personality of Alexander Stepanovich Popov, his scientific achievements, character, and the influence he had on contemporaries and subsequent generations of scientists. The focus of this work is not only the technical innovations associated with the creation of the radio, but also Popov’s personal traits, his passion for knowledge, perseverance and hard work, as well as those moments of life that shaped him as a scientist and a person. Authors with rich experience and deep respect for their hero, through their memories and characteristics create a living picture filled with warmth, respect and scientific accuracy. They tell about how Popov perceived the world, what ideas inspired him to new discoveries, and how his personality and professional path fit into a wide historical and scientific picture. This book will be of interest not only to specialists in the field of radio engineering and the history of science, but also to a wide range of readers interested in the history of Russia, the development of technology and the fate of outstanding personalities. It is perfect for students, teachers, researchers and anyone who wants to understand how genius and perseverance can change the course of history. Particular attention is paid to how Popov has become a symbol of national science, an example for young scientists and engineers, and his name is a symbol of progress and innovation. The topics raised in the book cover not only the technical aspects of radio engineering, but also issues of ethics, patriotism, scientific integrity and human values. The authors reveal how Popov’s personal qualities modesty, dedication and love for his work helped him overcome difficulties and leave behind a rich legacy. The book also touches on moments related to historical events in which the scientist participated, his interaction with colleagues and contemporaries, as well as the impact of his work on the development of world science. A special style of presentation inherent in the team of authors combines scientific accuracy with a lively, fascinating story, which makes the book "Alexander Stepanovich Popov in the characteristics and memories of contemporaries" not only informative, but also emotionally rich. The reader plunges into the atmosphere of the era, learns about Popov's personal qualities and professional achievements, which makes him feel like a living person, and not only as a historical figure. This book is a worthy addition to the literature about great scientists and inventors, it will be a valuable source of inspiration for those who seek to understand how genius and perseverance can change the world. For those who are looking for inspiration in the stories of outstanding personalities, as well as for lovers of scientific literature and the history of science, “Alexander Stepanovich Popov in the characteristics and memories of contemporaries” will open new horizons and give many pleasant discoveries. It combines respect for the past and faith in the future, which makes it relevant and in demand in the modern world of technology and innovation.