Parentheses

AP Style isn’t a huge fan of parentheses because they can often be replaced with other types of punctuation, like commas or em dashes. But we use them when appropriate. Information included in parentheses is sup­ple­men­tary to the rest of the sentence, like an example of what you just described or an additional clarification.

If the par­en­thet­i­cal text is a complete sentence, use sentence case and add correct end punctuation before the last parenthesis. If the par­en­thet­i­cal is a fragment, any necessary punctuation for the rest of the sentence will be outside the parenthesis.