What Do You Find In Abstract?

Maybe some of you guys already know what abstract is. but for those of you who are still my layman whose name is abstract, I will give some information

Abstract is a summary of the contents of a scientific paper aimed at helping a reader to easily and quickly to see the purpose of writing.

Abstract has the benefit to facilitate the reader to understand quickly the contents of a scientific paper so as to be able to decide whether to read further or not. Through this abstract can also find out the main keywords discussed.

This is an example from my review article

from the example of the article I reviewed, I can immediately know what the materials will be in the article.

In addition, from abstract we can get information from articles or journals about the keyword material we are looking for and there are some points about the contents of the article or journal.