How do we learn about the secrets of the past, hidden in the symbolism of the ancient mystical orders or in the mysteriously ideal proportions of the Egyptian pyramids? How do we understand the meaning encrypted, for example, in painting by great artists? What helps us to unravel the messages left by ancient civilizations?Once, in ancient times, only the Chosen were initiated into the secret meaning of symbols. At present, anyone can discover their mysterious essence. For this purpose, this book has been created, which describes the most ancient and most capacious symbols in terms of content, reveals some topics that have not been covered so far, such as the symbolism of science and martial arts, as well as a number of modern signs-symbols. The theory of the development of signs and symbols is presented in close connection with history, religion, psychology, art, etc. and is accompanied by brief, but accessible to any reader, explanations and reference information. Not the last place in understanding the significance of certain symbols is played by numerous illustrations.