Expanding your Font Knowledge

I stumbled across a nice little PDF file the gives good simple information about fonts. There's some basic stuff, and an interesting part about font names such as "Old Style" "Humanistic" and "Grotesque" (Contrasting stoke weight and a slightly squared quality).
There is also a helpful little area that explains the differences of PostScript Type 1, TrueType, DFont and Open Type.

here is the link to download the PDF file