Practical magic, author's methods, ancient knowledge, which were previously available only to a select few in the series of books "School of Esotericism...." The best mathematicians of mankind claimed that the numbers encrypted answers to many questions about the Universe, fate, future. Egyptian, Indian sages saw all human life in numerical combinations. And the famous Pythagoras considered the numbers to be the code of the whole world. From the square of Pythagoras begins numerology...