Charts are part of infographics or diagrams. They represent the data graphically and pictorially and they serve a similar purpose to illustration. They are a significant addition to textual information and are much easier to understand than the mere description of the database. Their use can provide clarity and precision in a presentation and can make data more attractive and understandable.
There are different types of charts and each has their purpose
Chart, Bar, Graphs
This article deals with the charts, their definition, types, and purposes according to the variation in the display of the dataset and variables.