Gallery: Line chart + Bubble chart + Bar chart

1 example

Showing visual types:Bar chart

Bubble chart

Line chart

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Benefits & pitfalls

Benefits & pitfalls: bubble chart

Using area or volume to represent data can distort data values, and exaggerate differences between values. For example, if the radius of the circle is used to represent data values, the area of the circle will quadruple if the data values double. There is also an issue of 'perceptual scaling' - the tendency of people to underestimate areas.

Benefits & pitfalls: line chart

Line-charts imply that data is continuously changing. If your data is discrete you might consider a bar-chart instead.

How to create your own

Create your own: bubble chart

Bubble charts can be created in a range of standard data applications such as Excel.

Google Data Explorer

This interactive tool developed by Google offers a large amount of data, ranging from databases on public debt in Europe (in the screenshot) to education statistics in California. It is fully flexible so the user can select can choose between line, char graphs and maps, as well as the contextual information to be displayed.

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