Okay writers—how many of you confess to misunderstand the use of the em-dash?
I had a hard time finding the em-dash on my MS Word. In my version, it is under the symbol tab, but in the “more characters” section in the “special characters” section of that. A copy editor told me that in books, it is the em-dash we should be using. My confusion—is whether to use the em-dash or the dots . . . . The rule for the dots is three with spaces in-between and four (actually 3 dots and 1 period) at the end of the sentence.
According to Wikipedia, both the en-dash and the em-dash may be used to denote a break in a sentence or to set off parenthetical statements, although writers are generally cautioned to use a single form consistently within their work. In this function, en dashes are used with spaces and em-dashes are used without them:
In matters of grave importance, style—not sincerity—is the vital thing.
In matters of grave importance, style – not sincerity – is the vital thing.
The en-dash (but not the em dash) is also used to indicate spans or differentiation, where it may be considered to replace and or to:
The French and Indian War (1754–1763) was fought in western Pennsylvania and along the present US–Canadian border (Edwards, pp. 81–101).
The em-dash (but not the en-dash) is also used to set off the sources of quotes:
In matters of grave importance, style, not sincerity, is the vital thing. — Oscar Wilde
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