Style - Punctuation
Punctuation provides vital clues for reader understanding. It's governed by well-documented rules. For example, every English sentence requires end punctuation (unless it's a title or a heading). Within those rules are stylistic choices, which we'll cover here.
Oxford comma. Use a comma before the conjunction in a list of three or more items. (The comma that comes before the conjunction is known as the Oxford or serial comma.)
Examples:
- Outlook includes Mail, Calendar, People, and Tasks.
- Save your file to a hard drive, an external drive, or OneDrive.