Hung Punctuation and Optical Margin Alignment
http://www.itcfonts.com/Ulc/4111/HungPunctuation.htm

Strizver, Ilene
Upper and lowercase Magazine
2008

Abstract:

Even with all the technology at the disposal of today’s designers, in the end it’s what the human eye sees that counts. That’s why hung punctuation is one of the skills to master when you’re ready to add professional finesse to your typography. Learn what hung punctuation is and how to achieve it in the leading page layout applications.