Collection of works of academician A . N. Krylova . T. 2, h. 2. Terrestrial Magnetism and Compass” is a unique publication that immerses the reader in the world of scientific discoveries and research related to one of the most mysterious phenomena of nature terrestrial magnetism. Author, Academician A. N. Krylov is an outstanding Russian scientist whose work in the field of physics and mechanics has left a noticeable mark in the history of science. This volume, as well as the whole cycle of his works, is not just a collection of articles, but a real encyclopedia of knowledge that will be of interest to both specialists and lovers of science. The book covers a wide range of topics related to terrestrial magnetism and compassing, ranging from the basics of the Earth's magnetic field to the practical aspects of using compasses in navigation. Krylov examines in detail the physical principles underlying magnetic phenomena and explains how they affect everyday life and navigation. The reader will be able to learn about how compasses work, how to calibrate them, and what factors can influence their accuracy. This makes the book especially valuable for those interested in geography, navigation and the history of navigation. Who can like this edition? First of all, it will be interesting for students and teachers of technical and natural sciences disciplines, as well as for everyone who is fond of physics and geography . Fans of the history of science and technology will also find in the book a lot of fascinating, because Krylov not only sets out the facts, but also immerses the reader in the context of the time when his research was conducted. This edition will be an excellent addition to the library of anyone who appreciates deep and thorough scientific work. The topics raised in the book cover not only physical aspects, but also philosophical reflections on the place of man in the natural world. Krylov asks questions about how we can use knowledge about terrestrial magnetism to improve our lives and improve safety in navigation. These reflections make the book relevant in today's context as navigation technologies continue to evolve. Style A. N. Krylov is distinguished by clarity and logical presentation, which allows even complex scientific concepts to be perceived easily and with interest. His other well-known works, such as Theory of Elasticity and Mechanics, are also distinguished by an in-depth analysis and a practical approach to the issues being studied. In this volume, Krylov continues his tradition of combining theoretical knowledge with practical recommendations, which makes his work valuable for both scientists and practitioners. Reading "Collection of works of academician A. N. Krylova . T. 2, h. 2. Earth Magnetism and Compass”, you will not only expand your knowledge of earth magnetism, but also immerse yourself in the fascinating world of science, which inspires new discoveries and research. This book will become a reliable guide to the complex but exciting issues associated with natural phenomena and help you better understand how they affect our lives. Do not miss the opportunity to touch the heritage of the great scientist and discover the secrets that hide our world.