What is the definition of interpreting of pie charts?

Sometimes, information is presented in the form of a pie chart because that is an easy way to visualize fractions. Most of us have, at some point in our lives, had to share a pie with some other person or people. We therefore have a concrete understanding of what it means to divide a pie into three sections. So metaphorically, we can visualize anything as a pie. We might use a pie chart to show how your tax dollars are spent. This slice is for national defense, this slice is for medicare, this slice is for interest payments on the national debt, and so forth. When we talk about interpreting pie charts, we simply mean looking at a pie chart and understanding what it means. We see that the US is spending quite a lot of its available money on interest payments. We see how big the slice is, of that particular pie. Perhaps this will tell us something about why it is not a good idea to be massively in debt.