Typeface Classification

Martin Plonka has created a lovely designed poster that classifies typefaces by seven major groups: Slab Serif, Serif Old Style, Serif Transitional, Serif Modern, Sans Humanist, Sans (Neo)Grotesque and Sans Geometric.

The typefaces are positioned radially using one of the stereotypical / popular data visualization methods. While I am not sure if this is the best readable technique but at the same time I am too intrigued with the look to not like it.