Here’s an example of a pie chart that Fox Chicago aired during the 2012 primaries: The three slices of the pie don’t add up to 100%.

Let’s get started with a few most common mistakes! Numbers Don’t Add Up When you draw a pie, stacked-bar or stacked-area chart, the numbers should add up to 100.

Last week via our Twitter account, @NPRFood, we learned that an enterprising Australian baker with a taste for data visualization had gone looking for hard data to make an edible pie chart.

Though businesses have access to an increasing amount of information, not many employees are trained to make sense of it. Chart.io wants to change that by making data visualization easy for anyone.

How to describe this image: Pie charts should be converted in to lists or data tables. These charts are very simple so they can be converted into lists. Ignore extraneous visual elements such as the ...

The three charts below are a good example – it is very hard to work out which of the five areas is the largest. The pie chart’s circularity means the areas lack a common reference point.

The team will also gather visualization examples from the internet—to understand and ascertain how the different visualization techniques such as scatter plot, bar chart, pie chart, etc. can be ...

Here are five of the best free online data visualization tools to generate graphs and create different types of charts from your datasets.