ASIDE: Using Visual Language in the Classroom

I've always wanted to become a better visual communicator. Just watched a short presentation about "the alphabet of visual language": forms, flows, and fields. There are also additional videos linked from this one which look interesting:

http://blip.tv/play/v0ix%2BSEC.html?p=1

http://a.blip.tv/api.swf#v0ix+SEC