I've been scouring typography primers lately looking for things written specifically about setting condensed type. Surprisingly little has turned up.
I'm curious if anyone has any suggestions for titles that go deeper than simply saying "oh yea, condensed typefaces exist and look cool." I'd also be interested in hearing if anyone has any personal rules they follow when setting condensed type.
The main point made is that condensed type is not a great means to save space. On the contrary: a wider width at a smaller size will typically give better results in terms of legibility.