Here are a few examples of FatFont visualizations created by ourselves. Please, notice that this is all still work in progress.
Click on the pictures to see the full resolution versions.
Topography of Sicily
Here the numbers that you read represent the relative topographic height of the terrain with respect to the highest point (Mount Etna = 99).
And a close-up around the big volcano.
You can compare these to their colour scale equivalents:
And the close-up:
They all have the same information, but the numbers in the FatFont examples allow you to make calculations on what you see. For example, with FatFonts you can trace the lowest path across the mountain range in the North of the island, or calculate exactly which ones are the second and third highest points in the area.
The data is taken from NASA.
Tohoku Tsunami Wave Height (Predicted)
And a different version with a different font:
The following graphs represent three alternative ways to represent histograms: through a box plot (left), through FatFonts which count the number of points inside each box, and by representing separately each point.
FatFonts might also be useful in text, to bring attention to the quantitative aspect of certain numbers.
This example uses a weight-flexible variant of Gracilia to represent the chapter size through the pages where they start: