Nested Proportional Area Chart
Also called: Stacked Proportional Area Chart, Bubbles (nested)
![](https://datavizproject.com/wp-content/uploads/types/Nested-Proportional-Area-Chart.png)
A Layered Proportional Area Chart is used for comparing proportions (size, quantities, etc.) to provide a quick overview of the relative size of data without the use of scales. You can also find a variant of this with circle shaped forms.