The differences between the hyphen (-), the en dash (–), and the em dash (—) can be confusing. Comma Queen Mary Norris from The New Yorker clarifies the difference in a video from her wonderful Youtube channel.
Mary Norris began working at The New Yorker in 1978 and was a query proofreader at the magazine for twenty-four years. She has written for The Talk of the Town and for newyorker.com, on topics ranging from her cousin Dennis Kucinich to mud wrestling in Rockaway. She is best known for her pieces on pencils and punctuation. Her book, “Between You and Me: Confessions of a Comma Queen” (Norton), is now available in paperback.
Related article — The Chicago Manual of Style: Hyphens, En Dashes, Em Dashes
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