The book "Electronic and ion devices" under the authorship of Vladimir Fedorovich Vlasov is a unique teaching aid that will become an indispensable assistant for students of radio engineering universities and faculties . This work not only covers a wide range of topics related to electronic and ion devices, but also immerses the reader in the world of high technology and modern achievements in the field of radio engineering. Vlasov, known for his deep knowledge and experience in the field of radio engineering, created this book in order to provide readers with a clear and accessible understanding of the principles of operation of electronic and ion devices. It addresses the main theoretical aspects as well as practical applications, making it an ideal choice for both students and professionals seeking to update their knowledge. The book begins with the basics, explaining the key concepts and principles of electronic devices, such as transistors, diodes and various circuits. Vlasov not only describes their functionality, but also shares the secrets of their design and optimization. The reader will be able to learn how these devices work in real conditions, which is especially useful for those who plan to develop and manufacture radio equipment. One of the strengths of this manual is its practical focus. Vlasov includes many examples and tasks in the text, which allows the reader not only to assimilate the theory, but also to apply the knowledge gained in practice. This makes the book an indispensable tool for students who are preparing for exams or course projects, as well as for engineers working in the field of radio engineering. The topics raised in the book cover a wide range of issues, including the basics of electronics, the physics of ion processes, as well as modern technologies in the field of radio communication and signal processing. Vlasov emphasizes the importance of understanding these topics for future professionals, emphasizing that knowledge in the field of electronic and ion devices is the basis for a successful career in radio engineering. The book will be interesting not only for students, but also for teachers who are looking for high-quality and relevant material for their courses. It can also attract the attention of researchers and practicing engineers who want to expand their horizons and deepen their understanding of modern technologies. The style of Vladimir Fedorovich Vlasov is distinguished by clarity and accessibility. He is able to explain complex things in simple language, which makes his works especially valuable for a wide audience. Vlasov is the author of many other scientific and teaching aids that also deserve attention. His books are often used in educational institutions and in advanced training courses, which indicates a high level of confidence in his knowledge and experience. If you are looking for a high-quality training manual on radio engineering, which will help you understand the intricacies of electronic and ion devices, "Electronic and ion devices" by Vladimir Fedorovich Vlasov will be an excellent choice. This book will not only enrich your knowledge, but also inspire further research in the field of radio engineering. Do not miss the opportunity to immerse yourself in the world of high technologies and discover new horizons in your professional activities!