Chart types are visual representations of data that help convey information clearly and effectively. Common types include bar charts, which display data using rectangular bars to show comparisons, and line charts, which connect data points with lines to illustrate trends over time. Other popular types are pie charts, which show proportions of a whole, and scatter plots, which display relationships between two variables. Choosing the right chart type depends on the data being presented and the message you want to communicate. For example, histograms are useful for showing frequency distributions, while area charts can highlight cumulative totals over time. Understanding these options can enhance data interpretation.