Pretty much anything that isn't body text. Headings. Words on posters. Book covers and spines. Advertisements (unless they're very wordy ones). Street signs. O

Pretty much anything that isn't body text. Headings. Words on posters. Book covers and spines. Advertisements (unless they're very wordy ones). Street signs. Of course these don't all want the same sort of treatment, but they have some features in common: you're not going to be reading a lot of whatever-it-is at one go, and there probably aren't going to be multiple lines of text. So you don't care so much about things like how comfortable it is to read in bulk or whether blocks of text look good in overall shape/density, and being quirky or distractingly eye-catching might be a feature rather than a bug.