This book is devoted to the topic of systemic research in the field of human psychophysiology. The following question was interesting to researchers: "Why, with principled psychophysiological sameness of humans, do qualities differ?" Answers to this and many other questions were found as a result of 40 years of fundamental research carried out by an expert in Chinese culture A. Davydov and his colleagues.

Among ancient Chinese monuments, Russian researcher Andrey Davydov discovered the catalog of human population. The title of this ancient source is Shan Hai Jing (translated from Chinese as the Catalog of Mountains and Seas). Official science still does not know for certain the dating of Shan Hai Jing and the author of this text. However, in this source A. Davydov found very detailed descriptions of psychophysiological structure of 293 subtypes of the biological type Homo sapiens. Thus, the answer to the question "What is human psyche and what is its structure?" was found.

"The catalog of human population is a description of a human as a type by subtype structures. Subtype structure ('psyche', 'soul') is a combination of individual archetypes, recorded at the genetic level (principle). Expressions and interaction of subtype structures in manipulation modes and phenological algorithms are described with adjustments for gender, age and cultural differences. Information is recorded on six factors." This definition was developed by Andrey Davydov - the author of discovery and decryption of the catalog of human population.

Despite that this scientific discovery was made back in the 80s of the 20th century, was verified in scientific institutions in Russia, has a wide range of practical applications, and for the past 20 years is being used in daily lives of those who known about it - unfortunately, it shared the fate of many scientific discoveries which do not fit into traditional scientific concepts.