Interesting applications of type

Per our discussion today in class, here's a link to some typeface portraits.

On the same blog, there's a post with some videos of designers creating the portraits. It's not exactly a how-to, but you can see the designer set type to paths and then play with font size, weight, etc. to create the portraits.

I also thought this blog had some interesting experiments in typeface. Many of them are hard to read, but when that design decision is made carefully and in a way that doesn't ultimately obscure the message, it can still work, can't it?