President Donald Trump has made the tricky punctuation mark a signature of his writing style.

Most often, quotation marks are used to show someone’s exact words. Sometimes, they also signal sarcasm or irony. In most cases, there is nothing especially unusual about this little punctuation mark.

What are news readers to make of quotation marks in an article or headline? It seems a simple question, but this punctuation occasionally causes a misimpression. The issue arose recently after The ...

I don’t remember when I first learned about single quotation marks, but I have a vague memory of assuming they were as useful as quotation marks, or close to it. Sometimes you quote someone. Sometimes ...