MargieMap is a visualization of United States census tracts by income. It also layers libraries (the orange spots) on top of the census tracts. Low income is visualized with the heavier blue shades. As incomes rises the blue fades and the visualization turns into a pink with the shades becoming heavier as the income rises.
The goal of MargieMap is to visualize the relationship between income and access to public libraries. [You can read more about MargieMap here.](https://carmalou.com/lets-take-this-offline/2018/05/18/map-the-internet.html)
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