The book "Wideband high-stable terahertz mixers on hot electrons from NbN thin superconducting films" by the authors of Ryabchun C. A. , Tretyakov and . In. This is a unique study that immerses the reader in the world of advanced technologies and scientific discoveries in the field of superconductivity and terahertz electronics. This is a monograph ,. which not only reveals complex physical principles, but also offers practical solutions for creating highly stable mixers , which makes it an indispensable source of information for professionals and students, interested in modern achievements in the field of physics and electronics. The book begins with the basics of superconductivity theory, which allows the reader, even who does not have deep knowledge in this area, to gradually immerse himself in the topic. The authors masterfully explain how thin films of NbN (niobium-nitride) can be used to create terahertz mixers, and what advantages they offer compared to traditional materials. In the course of reading you will learn about the principles of operation of mixers, their application in various fields, including telecommunications, medical diagnostics and scientific research. This book will be of particular interest to students and graduate students of technical specialties, as well as researchers and engineers working in the field of electronics and materials science. If you are interested in physics, electronics or want to learn more about modern technologies related to terahertz waves, then this monograph will be a real find for you. The topics raised in the book cover a wide range of issues, including superconductor physics, methods of their production, as well as practical aspects of the use of terahertz mixers. The authors not only share their research, but also discuss the prospects for the development of this area, which makes the book relevant and useful for future research. The reader will be able to evaluate how new technologies can change existing approaches in various industries and how they can be used to solve urgent problems. The style of the authors is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. Ryabchun S. A. The Third and . In. are known for their work in physics and electronics, and their experience is reflected in every section of the book Their previous publications, such as Superconducting Technologies in Electronics and Terahertz Systems: From Theory to Practice, are also noteworthy and can serve as an excellent addition to the topic being studied. The book “Wideband high-stable terahertz mixers on hot electrons from NbN thin superconducting films” is not just a scientific work, but a real find for anyone who wants to be aware of the latest advances in science and technology. It opens new horizons for understanding complex processes and technologies that can change our perception of the future of electronics. If you are looking for in-depth research in the field of terahertz electronics and want to learn how NbN thin films can become the basis for new breakthrough technologies, this book will become your reliable guide.