Via this post at I LOVE TYPOGRAPHY:
This is brilliant! A sort-of collaborative effort which offers exercises aimed at getting people better at design, entrepreneurship and gardening. Can't wait for it to launch properly, considering that it's already got two AWESOME (one more than the other) typography tools to play with.
Kern= the spacing between two letters.
Both these games are quite simple and depend on instinct- what looks or feels right. I was, obviously, better at kerning than shaping- 89 compared to a 79 in the latter. But great fun.
Also, again via the same post:
A 'learn to kern' T-shirt! Available here.