https://www.dummies.com/article/academics-the-arts/language-language-arts/grammar-vocabulary/using-em-dashes-and-en-dashes-properly-199035/
em dashesusingenproperlydummies
https://apvschicago.com/2011/05/em-dashes-and-ellipses-closed-or-spaced.html
Nov 2, 2025 - You might be wondering why I’ve paired the em dash with the ellipsis. Doesn’t the em dash usually get grouped with the en dash and the hyphen?
em dashesspaced outellipsesclosedap
https://chromewebstore.google.com/detail/ai-detector-em-dashes-uni/akjgjmlcjcgdpokjhkgmihkdagnnfcln
Highlights em dashes and selected Unicode spaces on webpages to help spot likely AI-generated text.
chrome web storeai detectorem dashesunicodespaces