Em Dashes: The Most Dramatic Punctuation Mark in English—Probably
(And why this Aussie prefers to avoid them altogether) There's no pictures in this one…. it'a all about writing.
Why I am writing about this….
Punctuation is the seasoning of language. Some people like it mild. Others toss in em dashes like chilli flakes on everything. The em dash (—) is arguably one of the most expressive, dramatic, and controversial marks in the punctuation pantry.
Loved by novelists, adored by copywriters, tolerated by academics, and largely ignored by Australians like me, the em dash has had quite the journey from old-school typesetting to modern digital prose.
So what is it, where did it come from, and why are people so weirdly passionate about it?
Let’s take a look.
What is an Em Dash?
An em dash is a long horizontal punctuation mark (—) that typically replaces commas, parentheses, or colons. It’s called an “em” dash because it’s roughly the width of the capital letter M in traditional typesetting.
Its job? To interrupt, dramatise, isolate, or insert thoughts. It’s like the punctuation equivalent of a stage whisper. “Hey, look over here!”
Example:
“She had one priority—getting out alive.”
That’s the classic use. It feels bold. Final. Dramatic. It’s punctuation with personality.
A Brief History of the Em Dash
Back in the days of manual typesetting, printers named spacing units after letters. The “em” was the width of a capital M, and the em dash was created as a visual pause wider than anything else on the page.
In 18th- and 19th-century writing, em dashes ran rampant. Authors used them in place of missing names, censored words, and abrupt interruptions. Jane Austen used them. Emily Dickinson was obsessed with them. She practically built her poetic rhythm around them.
Dickinson:
“Because I could not stop for Death —
He kindly stopped for me —”
Some scholars argue she used them in place of any punctuation that got in the way of her breath. Others think she just liked chaos.
Modern Usage
Today, em dashes are enjoying a full-blown renaissance. They're beloved in:
- American fiction
- Blog writing
- Marketing copy
- UX and interface microcopy
Writers use them to inject rhythm, tone, and even sarcasm. If you're aiming for conversational, snappy writing that doesn’t want to commit to the rigidity of commas or the formality of parentheses, the em dash is your go-to.
When to Use an Em Dash:
- To insert an interrupting thought
- To replace a colon for added emphasis
- In place of parentheses to soften formality
- For abrupt endings or interruptions in dialogue
Example:
“I was going to call—but then I remembered who I was dealing with.”
The Spacing Controversy: To Space or Not to Space?
Ah, yes. One of the Internet’s greatest typographic debates.
❱ The American Standard:
No spaces. Just raw, uncut drama.
“She was tired—exhausted, really—but she smiled anyway.”
Style guides like The Chicago Manual of Style, MLA, and APA all say: no spaces before or after the em dash. End of story.
❱ The British/Australian Way:
Typically, we prefer en dashes with spaces instead.
“She was tired – exhausted, really – but she smiled anyway.”
It feels less claustrophobic. More breathable. Less… theatrical.
Now, a Personal Note From This Australian Writer
Look, I don’t hate em dashes.
I just… don’t trust them.
They’re like over-eager theatre kids. Loud. Attention-seeking. Always ready to leap into the middle of a sentence with an overly dramatic pause.
I mean, let’s be honest. We already have commas, brackets and colons. How many punctuation tools does one sentence need?
Besides, spacing rules alone are enough to make a laid-back Aussie curl up into a ball of indifference. No space? One space? Two spaces and a handshake?
Honestly, I'd rather not deal with it.
So in my own writing, you won’t find me whipping them out very often. I’ll stick to my commas, my understated en dashes, and a healthy dose of full stops. Because sometimes, keeping it simple is the real drama.
When You Might Actually Want to Use Them (Even If I Won’t)
Despite my personal reservations, I can admit the em dash has its place. If you want your writing to feel modern, fluid, and just the right amount of snarky or surprised, go for it.
Just don’t overuse them. A sentence with two em dashes is tolerable. A paragraph with six? That’s punctuation inflation.
Summary Table: Em Dash vs. Everything Else (I love tables)
| Use Case | Em Dash Example | Alternative |
|---|---|---|
| Interruption | “Wait—I didn’t mean that.” | Comma, period |
| Parenthetical thought | “My brother—who never calls—showed up.” | Brackets |
| Instead of colon | “She had one thing in mind—revenge.” | Colon |
| Dramatic emphasis | “Everything changed—forever.” | Italics, ellipses |
| Dialogue cut-off | “But I never—” | Em dash is best |
Begrudgingly…
The em dash is a stylish, flexible punctuation mark with a flair for drama. It walks the line between formal and conversational, structure and spontaneity.
Just know what you’re signing up for. Once you start using it, it’s hard to stop. It’s the espresso martini of punctuation. Sophisticated, potent, and just a little bit extra.
But as for me? I’ll pass.
No hard feelings.
Just—none at all.
