A couple of months ago, the Symbolset font was introduced, which uses OpenType ligatures to show symbols in place of words, in a semantic way. It’s a very clever use of advanced typographic features.
Now, FontFont has introduced Chartwell, along similar lines:
Using OpenType features, simple strings of numbers are automatically transformed into charts. The visualized data remains editable, allowing for hassle-free updates and styling.
The results are very clever. Be sure to check out the video in the post to see the results.