Purpose of the book "Futurology. XXI century: immortality or global catastrophe," as its authors declare, "create a map of a possible future and encourage people to take actions leading to the implementation of a positive scenario." According to the authors, already in this century it is possible to create artificial intelligence, which will ultimately lead either to a radical extension of human life, or to a global catastrophe and the death of mankind. The book is aimed at a wide range of readers, written quite fascinatingly and is recommended for reading by everyone curious and wishing to get an idea of ​ ​ the future of humanity (perhaps not so distant) in the context of rapidly developing technological progress.