When to use an Area Chart
This type of chart can be misinterpreted if not used correctly. As this chart shows a filled area to represent the data, the solid block of colour can cause occlusion and hide other data series. The best way to get around this is to increase transparency but this is only recommended with two or three different areas otherwise it can become too confusing. Therefore this is not the best choice if you have a lot of areas, although one way to combat this is to stack the chart. A good example of an area chart is below.
An area chart is a good way to demonstrate trends over time to the viewer, for example showing the total population over time. This chart is based on the line chart. The filled area can give a greater sense of the trends in a particular dataset.
If you want to learn how to easily make an area chart with ChartBlocks then we have an FAQ area with a step by step guide of how to make charts?