A regular area chart serves the same purpose as a line chart. It helps us visualize trends over time. A 100% stacked area chart, on the other hand, allows us to see how different categories contributed to the total over a period of time. This is something, which we cannot show with a simple line chart. Whenever we want to learn how a variable or a set of variables developed over time, we can use an area chart to visualize that development over time.

Some other related topics you might be interested to explore are Scatter Plot, Line Chart, Waterfall Chart, and Bubble Chart.

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