Non-Designer’s Type Book, The, Second Edition

When to Hang It

Punctuation should always be hung when type is set aside from the main body of text or when set large, as in a quotation, pull quote, headline, poster, etc. If the type is set flush right, the periods or commas at the ends of the lines should also be hung if they interrupt the right edge of the type. (Except in very fine typography, punctuation in body text is usually not hung because of the trouble it takes and because the interruption in the line is not as significant when the type is small.)

I’m sure you agree that both of these pieces of type need the punctuation hung.

Oooh, look at those nice clean edges. The strength of ...