A stacked area chart is a primary Excel chart type that shows data series plotted with filled areas stacked, one on top of the other. A stacked area chart can show how part to whole relationships change over time. They offer a simple presentation that is easy to interpret at a glance.
Simple presentation can be red at a glance
Can show part to whole changes over time
Generally harder to add data labels since there is less white space available
Area charts can imply more data than actually available
I first saw a reference to this data on the interesting News, in Data site. The data cited comes from the drugabuse.gov website, and is presented in a combo chart with columns showing overall heroin deaths and lines...
This is an example of a 100% stacked area chart. This tricky chart type can be quite hard to read. The idea is to visually show a percentage distribution across categories at specific intervals, but you lose the ability...