The book "Navigational devices" by B. Selezneva is a fascinating and informative work that immerses the reader in the world of modern navigation technologies. In this work, the author not only shares his knowledge about various navigation systems, but also explores their impact on everyday life, transport and even the global economy. Seleznev, known for his in-depth research on technology and its applications, offers readers a unique look at how navigation devices have changed our perception of space and time. It considers not only GPS and GLONASS, but also new technologies such as augmented reality systems and self-driving cars. This makes the book relevant for those who are interested not only in navigation, but also in the future of technology in general. The book will be interesting to a wide audience .. Students of technical specialties, engineers, as well as just technology lovers will find a lot of useful information in it. It will also be suitable for those who are fond of traveling and want to learn more about how modern devices help us navigate in unfamiliar places. Even readers without technical training will be able to understand the basic ideas, thanks to an accessible style of presentation and a lot of examples from real life. The topics raised in the book cover not only technical aspects, but also philosophical issues. How does navigation affect our perception of the world? Are we becoming more dependent on technology? These questions make us think about how we interact with the environment and how technology is changing our behavior. Seleznev also touches on the topics of security and privacy, which makes the book especially relevant in the era of digitalization. The author's style is clear and logical. In. Seleznev is able to explain complex things in simple language, which makes his books available to a wide audience. His previous works, such as “Future Technologies” and “Cybernetics and Society”, have also received recognition for their in-depth analysis and fascinating presentation. In "Navigation Devices", he continues this tradition, offering readers not only facts, but also interesting stories related to the development of navigation technologies. If you’re looking for a book that will help you understand how navigational devices are changing our world, and give you a chance to think about the future of technology, “Navigation Devices” Selezneva will be an excellent choice . This work not only enriches knowledge, but also inspires us to think about how technology can improve our lives. Don’t miss the opportunity to learn more about how navigation affects every aspect of our lives from travel to business. This book will be your reliable companion in the world of technology and will open new horizons of understanding.