The book "Quaternary models and methods of dynamics, navigation and motion control", written by a team of authors, is a unique study that immerses the reader in the world of complex mathematical models and their applications in dynamics and navigation. This work will be a real find for students, graduate students and specialists in the field of mechanics, robotics and aviation, as well as for anyone interested in modern methods of traffic control. At the heart of the book is the concept of quaternions — mathematical objects that allow you to effectively describe rotation and orientation in three-dimensional space. This approach is particularly relevant in modern technologies, such as navigation systems, unmanned aerial vehicles and robots. The authors examine in detail how quaternions can be used to model the dynamics of moving objects, making them indispensable in engineering and scientific applications. The book not only explains the theoretical aspects of quaternion algebra, but also illustrates their practical application. Readers will be able to learn about the different motion control techniques that are based on these mathematical models. This makes the book especially useful for engineers and researchers working in the field of automation and robotics. The authors share their knowledge and experience, which allows the reader not only to understand the theory, but also to see how it is applied in practice. The topics raised in the book cover a wide range of issues, including system dynamics, traffic management, and navigation. The authors consider both classical and modern approaches, which allows the reader to get a complete picture of the current state of science in this area. The book also touches on the optimization of control algorithms, which is an important aspect for improving the efficiency of modern systems. The style of presentation of the authors is clear and accessible, which makes complex mathematical concepts understandable even for those who do not have deep knowledge in the field of mathematics. Each section of the book is accompanied by examples and illustrations, which helps the reader to better absorb the material. This makes the book not only a textbook, but also a fascinating reading for anyone interested in science and technology. The book will be of interest to both students of technical specialties and experienced specialists working in the field of mechanics and automation .. It will be an excellent addition to the library of any engineer or researcher seeking to deepen their knowledge in the field of dynamics and motion control. In addition, it can be useful for teachers who are looking for quality materials for their courses. If you are looking for literature that combines theory and practice, and also offers a fresh look at modern navigation and traffic management techniques, then "Quaternary models and techniques of dynamics, navigation and traffic management" is what you need. This book will not only expand your knowledge, but also inspire new ideas and projects in the field of science and technology.