- No comma is necessary before an ampersand, even if it is the serial comma before the last item in a list.
- The oxford comma should be used.
- No comma is necessary before “Jr.,” “Sr.,” or any numeral suffix.
- There should only be one space after periods and colons.
- Commas and periods are placed inside quotation marks; colons and semicolons are placed outside. Depending on meaning, question marks can appear either inside or outside quotation marks.
- When using a dash to amplify a phrase or show a break in thought, use an em dash (—) rather than an en dash (–) or hyphen (-).
- No space is needed between dashes or slashes and surrounding text.
