About Fantasy books
Fantasy books are a kind of mimesis, in a narrow sense, a genre of fiction, cinema, and fine arts; its aesthetic dominance prevails in such type of fantasy, which violates the framework, boundaries, and rules of representation (“conventions”). The main sign of fantasy is the presence of a fantastic assumption in the work.

The fantastic assumption, or fantastic idea, is the basic element of the fantasy genre. It lies in introducing into the work a factor that does not occur or is impossible in the real world where the reader or the characters of the work live. The fantastic assumption is opposed to the realistic assumption: fiction that does not contradict the possibility that is used in realistic fiction.

The origins of fantasy lie in the post-mythological folklore consciousness, primarily in the fairy tale. Fantasy stands out as a special kind of artistic creativity, as folklore forms move away from the practical tasks of mythological comprehension of reality (the oldest cosmogenic myths are essentially non-fantastic). Primitive world outlook collides with new ideas about reality, mythical and real plans are mixed, and this mixture is purely fantastic.
Fantasy in literature
The definition of fantasy is a task that has caused a tremendous amount of discussion. The basis for no fewer disputes was the question of what science fiction consists of, and how it is classified.

Subsequently, this opinion was shaken. The statement of the famous American science fiction writer Ray Bradbury is characteristic: “Fiction is literature.” In other words, there are no significant barriers. In the second half of the 20th century, old theories gradually receded under the onslaught of changes that took place in science fiction.