Question marks

Use a question mark (?) at the end of a direct question. 

While the occasional question in an email subject line is acceptable, it's best to reword questions in website, documentation, and product headings and subheadings to form an affirmative statement. This also helps your content sound more confident and less like the patter of a second-hand car salesperson. 

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Naturally, questions are necessary on help pages that follow a question and answer format.

In product copy, it’s okay to use a question mark if you don’t know the result of the question (Forgot password?), but if there's only one option available, you can drop it (Reset your password). 

Question marks and quotes follow logic. If the question mark is part of the quotation, it goes inside the quotation mark.

 ✓  The reporter asked, "When will you publish your earnings statement?"

If you’re asking a question that ends with a quote, the question mark goes outside.

 ✓  Who was it that said, “Measure twice, cut once”?

See also: Quotation marks