Rhetoric and Composition/Parentheses

What Do Parentheses Do? edit

Parentheses can be used to enclose an interjected, explanatory, or qualifying remark, mathematical quantities, etc. The words placed inside the brackets are not necessary for the interrupted sentence to be complete.

Setting off incidental/accompanying information
  1. Be sure to call me (extension 2104) when you get this message.
  2. Copyright affects how much regulation is enforced (Lessig 2004).
Enclose numbers and letters that label items listed in a sentence

Hyphens and Dashes · Capitalization