A prologue is (in the literature) an introductory section that “opens” a work of any style. He can appear in fiction, and in various books of a technical orientation, and in large articles having a political or social orientation. A prologue is not an obligatory part of every work. Nevertheless, it significantly helps the reader to get acquainted with the meaning of what he is about to start.
A prologue is, in other words, a retelling of the entire work, the reader’s dedication to some of its details and events. Often in the introductory part there is a short story about the heroes of the book, about their features and character traits. An author can, to one degree or another, reveal their spiritual qualities or talk about what happened to a person earlier, that is, before he “hit the book”. Such a technique helps well in brighter colors to understand the writer's intention, as well as to feel the atmosphere that the pages of a particular literary masterpiece conceal within themselves.
Journalists, reporters and philosophers also often use prologue in their writings. Chernyshevsky, a master of utopian judgments about the world and our being, could not start writing a single work without first presenting it to the reader in the form of a brief description. Many also argued that, without reading the preamble, they could not comprehend the meaning of what this thinker wrote.
A prologue is an intrigue that an author can create in order to collect as many readers as possible from the pages of his book. There may not be a full description of the storyline or an incomplete description of a character. This technique allows you to lure a person, thereby "tying" him to the book. Such a trick is an integral part of modern articles, mainly on political topics. If the material presented is large, then the prologue is a few pages that can be posted on the Internet or printed in a brochure. In the case when the article is small, its author can easily do with a catchy description, which will take a paragraph or two.

This literary term has many variations and variations. Mostly, it is worth noting that in most fiction books (mainly issued in Soviet times), the first section is precisely the “Preface”. This chapter is too generalized and does not give a clear definition of what the subsequent story will be, which is significantly different from what the prologue usually describes. This is a kind of introduction, which most often makes it clear the style of the writer.
The prologue is present not only in literary works. Often, a prologue is the first part of a choral performance, opera or ballet, dance, monologue, and so on. However, in this case, this term does not lose its qualities and is still a familiarization step for each viewer. He can fully reveal the meaning of the play or create intrigue - it all depends on the intention of the author or director.