The book “Hyrocompasses and gyro-rizontcompasses” by Sergey Matveev is a fascinating and deep immersion in the world of navigation technologies, which have become an integral part of modern navigation and aviation. In this work, the author not only reveals the technical aspects of the work of gyrocompasses and gyro-rizontcompasses, but also offers the reader a unique opportunity to understand how these devices have changed the approach to navigation and orientation in space. Sergey Matveev, known for his work in the field of navigation and geodesy, masterfully combines theory and practice, making complex technical concepts available to a wide audience. His style of presentation is clear and logical, which allows readers, even those who do not have special education, to easily absorb material. The book will be of interest not only to professional navigators and engineers, but also to everyone who is interested in modern technologies, the history of navigation and its development. In "Hyrocompasses and gyro-rizontcompasses" the author examines in detail the principles of operation of these devices, their design and application in various fields. Readers will learn about how gyrocompasses help ships and aircraft determine their location, as well as how gyro-rizontcompasses are used to determine angular coordinates. Matveev also touches on the history of the creation of these devices, their evolution and impact on navigation and aviation. The book raises important topics such as the accuracy of navigation, the influence of external factors on the work of gyrocompasses and gyro-rizontcompasses, as well as modern achievements in this area. Readers will be able to understand how innovative technologies, such as GPS, interact with traditional navigation methods, and what prospects open up for us in the future. This work will be especially useful for students of technical universities, specialists in the field of navigation, as well as for everyone who is fond of navigation and aviation. It will be an excellent addition to the library of those who seek to expand their knowledge of navigation systems and their role in our lives. In addition, the book "Gyrocompasses and gyrogorizontcompasses" can attract the attention of readers interested in the history of technology and their impact on the development of society. Matveev, as the author, has a unique ability to link technical details with historical contexts, which makes reading not only informative, but also fascinating. If you are looking for literature that will help you better understand how navigation systems work and how they have changed the world, then “Gyrocompasses and gyro-rizontcompasses” is exactly what you need. This book will be your reliable companion in the world of navigation, opening up new horizons of knowledge and understanding. Thus, Sergey Matveev’s “Hyrocompasses and Gyrorizontcompasses” is not just a technical guide, but a real encyclopedia that combines history, theory and practice of navigation. Do not miss the opportunity to immerse yourself in this fascinating world and discover new horizons!