5 Punctuation Mistakes to Recognize and Avoid

Punctuation in a story is like the spice in a soup. When we’re sipping that soup off our spoons, we’re not likely to notice or identify every spice that has created the uniquely delicious flavor caressing our taste buds. Same goes for punctuation. When shaken out with a skillful hand, the very effectiveness of punctuation makes it go unnoticed. On the other hand, when we choose the wrong punctuation in the wrong place, the result is the readerly equivalent of coughing over too much cayenne.

Today, at the request of a Twitter follower, I’d like to offer a crash course in How to Use Punctuation to Spice Your Story to Perfect Redolence. Let’s look at some of the most commonly confused and misused punctuation marks.

1. – or – or — or ~

When you want to indicate a break in your sentence, do you reach for the hyphen (-), the en dash (–), the em dash (—), or the tilde (~)?

The hyphen (-) is the smallest punctuation line and is created by tapping the hyphen key (found just after the zero on most keyboards). The hyphen is never used to indicate a break in a  sentence. Its purpose is joining prefixes to root words (“self-defense”), connecting related modifiers (“long-haired woman”), and hyphenating a word that continues over two lines of text (“humon-

The en dash (–), so called because it is approximately the length of the lowercase letter “n,” can be created in most programs by putting a space on either side of a hyphen. The en dash is used to indicate a continuation between periods of time in which you might otherwise use the word “to” (1805–1905).

The em dash (—), so called because it is approximately the length of the lowercase letter “m,” can be created in most programs by placing two hyphens, with no spaces, between two words. The em dash is the proper choice for indicating a break in a sentence, particularly when the break is abrupt, as when a line of dialogue is interrupted (“I thought I heard—”).

The tilde (~), created in Word by pressing Ctrl+Shift+button in the top left corner of most keyboards+(desired letter), should never be used independently within a sentence. The tilde should be used as an accent over a letter to indicate the pronunciation is nasalized (“niño”) and is incorrect when used to take the place of a dash (e.g., “Sam ~ the Golden Retriever ~ caught the Frisbee.”)

2. . or ! or !!!

When you want to end a dramatic sentence, do you reach for the period, the exclamation point, or maybe even several exclamation points?

The period is almost always going to be your best bet.

Exclamation points should be used with sparing care, since, as F. Scott Fitzgerald explains,

An exclamation mark is like laughing at your own jokes.

When you do decide the added emphasis of an exclamation point is necessary, never use more than one.

3. — — or () or , ,

When you want to include an appositive phrase (a modifying phrase that isn’t strictly necessary to the sentence), do you reach for a pair of dashes, a pair of parentheses, or a pair of commas?

This question is a little more open-ended, since all of these options are correct. Your choice should be dependent on the effect you’re trying to achieve.

Dashes will set your appositive aside with more force, separating it definitively from the rest of the sentence, which can bring added clarity to complex sentences (e.g., “She looked up—her face a mask of horror—and reached for the telephone”).

Parentheses are rarely used in fiction unless the narrative tone is humorous or particularly confiding, since the words they contain often come across as a whispered aside to the audience (e.g., “She looked up (her face a mask of horror) and reached for the telephone”).

Commas are the most common and most appropriate choice for most sentences (e.g., “She looked up, her face a mask of horror, and reached for the telephone”). The only time you shouldn’t use commas is when you’re afraid the sentence is growing too complex or convoluted (in which case you’d probably be wise to divide it into several sentences) or when the appositive requires the emphatic force of the dash.

4. “” or ‘’

When you want to indicate a line of dialogue or set aside a particular word within a sentence, do you reach for single or double quotation marks?

This one gets a little tricky, since the answer will vary depending on where you (and your publisher) live. In American usage, double quotation marks are always correct, except in instances of a quote within a quote (e.g., “She used the word ‘sweetie’ as if it were an epithet,” Margaret said.)

In British usage, single quotation marks are correct (e.g., ‘She used the word “sweetie” as if it were an epithet,’ Margaret said.)

5. , or ; or :

When you want to separate independent clauses, do you reach for a comma, a semicolon, or a colon? 

In this instance, your choice is largely a personal one, since all three can be used to divide a sentence.

A comma, paired with a conjunction, should be the punctuation mark you reach for most often, since it’s the most utilitarian, invisible, and therefore preferable choice (e.g., “Carolyn went to the store one last time, and I went with her”).

The semicolon, oft derided for being an unnecessary punctuation mark, is a stylistic choice that offers a happy medium between the “soft” break of a comma and the “hard” break of a period (e.g., “Carolyn went to the store one last time; I went with her”).

The colon is most often used to indicate a list of items (“I went to the store for the following items: milk, bread, and cheese”), but a “jumper colon” can also be used to break a sentence and show a cause and effect progression between the first half of the sentence and the second (e.g., “Carolyn went to the store one last time: I went with her”).


So there you have it! If you can master these sometimes tricky punctuation rules, your story will turn out as savory as a properly spiced soup.

Wordplayers, tell me your opinions! What punctuation rule do you find most confusing? Tell me in the comments!

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About K.M. Weiland | @KMWeiland

K.M. Weiland is the award-winning and internationally-published author of the acclaimed writing guides Outlining Your Novel, Structuring Your Novel, and Creating Character Arcs. A native of western Nebraska, she writes historical and fantasy novels and mentors authors on her award-winning website Helping Writers Become Authors.


  1. I think choosing between a comma, semi-colon, and period, is the most confusing for me. The effects of each are different and I find myself over-analyzing which of them may be best.

    Thank you for a great post.


  2. Great post! I’ll be bookmarking this for future reference. I think I have the most trouble knowing when to use an em dash, en dash, or hyphen, so I’m glad you addressed that.

    You never mentioned the ellipsis. If a character’s words trail off and she doesn’t finish her sentence, would you use it then? For example:

    “I don’t know how to tell you this, but…” Tears filled her eyes and she looked away. “Sean’s dead.”

    Also, would something like this be correct?

    “Is he… is he really dead?”

    Thanks for the help!

  3. Great post! And I honestly never thought of using a tilde as an em dash–did someone just think it was a more formal em dash or something?

  4. @Rasahad: Usually, it’s best to go with your gut. The effects of these marks are so subtly different that you’re not likely to go wrong with any one of them, so long as you’re using them all correctly within the structure of the sentence.

    @Ena: Sounds like you’ve got it! The ellipsis is formally used to indicate a deletion from a quote. But in fiction, we use it to indicate when someone’s words are trailing off, rather than being broken off, as would be indicated by the em dash.

    @Anjelica: I think folks like the “prettiness” of the tilde’s squiggle.

  5. This is so much more logical than the discussion of it in layout class.

  6. Glad you found it useful!

  7. The Semi-colon has been my worst enemy and my husband says I get too comma happy. I am bookmarking this page.

  8. You’ll find that commas aren’t as popular as they once were, and writers often tend to leave them out in many instances where the commas are technically correct. The whole purpose of commas is to clarify the intent of the sentence, so I tend to err on the side of more than less when it comes to commas. As long as they’re not used incorrectly, they’re rarely a bad thing in my opinion.

  9. Honestly, I have the hardest time with quotation marks. I think the rules I learned in grammar school have changed!

  10. Sometimes learning the rules isn’t the tricky part, so much as remembering them. If the rules change along the way, well, that’s playing dirty!

  11. Blogs with punctuation are better than sex. Great post! Why do I suddenly feel I need a cigarette?

  12. Interesting post, Katie. It is definitely more complex in Russian: I have a book on just the punctuation, it’s always hard for me to use it, and when I write long sentences, which is a very Russian tradition, I have biggest problems with “–,” or with “,–“. I’m not sure I punctuated the previous sentence correctly. Anyway, I’m relying on editors here ))

  13. Very helpful. Thank you.

  14. Oh! I just love lessons about puncuation! Great post! Thank you.

  15. Thanks this was awesomely clarifying :)One question I have, I’ve noticed people using / and ~ to apparently indicate line breaks in poetry. like

    XXX/XXX or XXX ~ XXX to indicated


    Is the ~ technically being used incorrectly?

  16. @Karen: That stressful, huh? :p

    @Grigory: What little I know about the Russian language leaves me thankful I get to use the slightly less complex (if still problematic) English.

    @lovinadoptin: Glad it was useful!

    @Tess: Thanks for reading!

    @Daniel: I’m not a poet, so don’t take my word as gospel on this – but I can’t think of any reason the tilde would be technically correct in that instance. The slash is the punctuation mark most commonly (and therefore, I would think, most correctly) used.

  17. You know, just thinking… it’d be nice if the interobang got more recognition… you can’t get it in most fonts… :/

  18. I’m not a big fan of the interobang. It hasn’t gained enough formal usage to come across as professional, IMO.

  19. Hence the reason it should be used more… There’s been many times in my writing, I’d use it. But, there’s no way to do it.

  20. Commas, Semicolons and Colons were the worst for me. I’ve generally been the more wordy person in my family, so for the most part, English and grammar weren’t much of a problem.

    Thnx for another great article. 😀

  21. @Liberty: It has a cool name, I’ll grant it that!

    @Gideon: Commas can get tricky, just because they’re used for *everything.* Colons and semicolons are less utilitarian and more elegant, so they’re a luxury and not a necessity.

  22. My clients’ ignorance of em- and en-dashes causes me agony. Thank you for helping educate people about them. I adore en-dashes for those rare instances of triple-compound words, such as “non–English-speaking people.” (This is why my friends make fun of me. Well, one of the reasons.)

    To be persnickety about a common misuse, many people insist on putting spaces around em-dashes or using an en-dash with spaces in place of an em-dash. This is wrong. Depending on how the typeface is designed, a very slim space that you can’t type on your keyboard may be placed around them, but a full space is as wrong as a deuce of spaces following a period. If a professional is laying out your book, they’ll have to strip away all of your extra spaces, which will annoy them.

    The tilde does have a proper text usage—it’s an symbol for approximately: “The Earth has ~6 billion people.” I would be unlikely to use it in fiction, unless quoting from a text (whether real or imaginary), but it’s use is technically legitimate.

  23. For Mac users, the keyboard shortcuts are:
    Opt-hyphen for en-dash (–);
    Shift-Opt-hyphen for em-dash (—);
    Opt-n+letter to get a tilde over a letter (ñ, ã);
    and Opt-semi-colon to get an ellipses (…).

    If you’re running OSX 10.7 Lion, you can also hold down a key for a few seconds and get a list of all the possible variants on that letter, just like on the iPhone.

    • Denise Greene says

      Thanks for this! I’m a new Mac user. I’ve been collecting shortcuts on a stickie-note on the desktop. These are definitely joining the rest.

  24. Thanks for the helpful post. I think I tend to overuse commas;(

  25. Thanks so much for clarifying things!!

  26. Thanks for the invitation to this meeting of Pedants Anonymous. Great to see such clear explanations.

    Apart from the triple compounds identified by London above, the main usage for the en dash is to indicate a range of numbers, such as 35–65°F.

    For Windows users, the Alt-key codes for these characters are:
    (Hold down alt key while typing four number keys on the keypad, or using the Fn key plus alt on laptops to access a virtual keypad)

    elipsis alt+0133
    en dash alt+0150
    em dash alt+0150

    Go to http://www.alt-codes.net/ for a complete list.

  27. Oops! Proof reading!

    em dash alt+0151

  28. Most confusing is the em dash, n dash, or hyphen choice when indicating a break in the sentence. Reason being, I’d never heard of em and en dashes until I started writing seriously about three years ago. It’s good to know that many of these rules are not hard and fast. I think the main thing is be as correct as possible, but also be consistent when you have options.

  29. @London: Thanks for sharing the Mac shortcuts! I’ll often see professionally published books that use the space/en dash/space gimmick. Drives me crazy, mostly because they should know better.

    @Lorna: Commas are hard to overuse. Misuse, yes, but when in doubt in a technically correct instance, we’re always better off adding the comma rather than leaving it out.

    @Traci: Thanks for commenting!

    @Murph: Thanks for adding the number shortcuts. The link looks particularly useful for those among us (*raises hand*) who get numbers scrambled in their brains.

    @Chris: Except in instances when the punctuation offers the author stylistic choices, most punctuation rules are almost always hard and fast, the hyphen, en, and em dash among them.

  30. Great post! I’ll be saving this one! Thank you!

  31. Thanks for the great post. Very useful.

  32. @Dovelily: Glad you enjoyed it!

    @Jolea: Thanks for stopping by!

  33. I use commas more often because they can be used for most situations. That way I’m not struggling with which mark to use, and when. I mostly write by feel, since I don’t have a formal education in creative writing. Normally, I can read one of my sentences and recognize if something feels a little off. The one thing I have problems with is how to indicate a character is thinking directly to themselves. Do I use italics, or single quotes? Most often, I convey internal monologue and feelings of the characters through narrative.

  34. If you’re going to use direct thoughts, I prefer setting them apart from the rest of the narrative via italics, just for clarity’s sake. However, I’m not a big fan of direct thoughts. I like the character’s thoughts to flow seamlessly within the narrative, so the reader is never jarred for an instant and the entire book has the flavor of the character’s inner voice.

  35. I did not know about the difference between the hyphen and the en-dash, so thank you very much.

    That being said, the pair of dashes and the exclamation point are threatening to serve me with a restraining order. When I write e-mails and such, if I don’t revise, nearly every sentence has a double dash. The exclamation point is an enabler; it lets me get away with horribly generic verbs and adjectives.

  36. I used to death on exclamation points – and I still am in formal writing. But social media has slowly corrupted me. The exclamation point shows up a lot more in my informal writing nowadays! (<--See!)

  37. Finally someone who’s bothered by this as well. Bad grammar and punctuation has always been a pet peeve of mine, even if English is not my first language. Thank you for posting this! I really do love your definitions, especially between choosing the right form of quotes for dialogue. I wonder if there’s a third alternative? I’ll definitely bookmark this post!

  38. If there is a third alternative, I don’t know what it would be. Glad you enjoyed the post, fellow punctuation nut!

  39. Great article, but I would like to point out that in UK English, spaced en rules (to give them their correct, typographical title) are often used to indicate dashes. This is really a matter of house style rather than a hard-and-fast grammatical rule, therefore.

  40. Ah-ha, I didn’t know that. Makes more sense now why I see the en dash used in place of the em dash in professionally published books. Thanks for sharing!

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  43. I never use exclamation points in narrative, but I have been known to use them once or twice in dialogue. Is there any circumstance in which use of an exclamation point is ok?

    • K.M. Weiland | @KMWeiland says

      When in doubt, leave it out. But exclamation points in dialogue are totally acceptable if you need them to indicate that a character is shouting.

  44. Sorry I am late to the punctuation party. 😉 I’m so happy I discovered this because you’ve set everything out in the clearest way possible. I love when mentors use practical examples to show, not only tell.
    I’ve always had questions about the proper way to set off a word in a sentence and never knew if I should use ‘this’ or “this”, especially if the word is in a dialogue sentence. You’ve set me straight and I thank you.

    • K.M. Weiland | @KMWeiland says

      Glad to be of help! It’s also worth nothing that in American usage (I *think* it’s different in British), the comma should go inside the quote marks. Commas and periods go inside; colons and semi-colons go outside.

  45. I have a doubt in relation to introducing a scene. Do you do it with a parenthesis? Example:

    For some time, peace in the kingdom of Quimeria had been threatened.
    (At the royal room)
    “Another revolt?” the King asked his counselor.
    “Yes, your Honor, we captured the leader, but—”
    “But what?”

    • K.M. Weiland | @KMWeiland says

      No, unless you’re writing a script, you’ll need to introduce the setting via description.

  46. Denise Greene says

    Oh, my gosh! Are you reading my mind? I’m both a writer and editor. I had a distinct handle on these before I started editing. When I started editing, not a single writer could use the hyphen, the em-dash, nor the ellipsis properly. I began to get confused myself. Last night I vowed I would look it up to have the proper use strengthened in my mind, and this morning, “Voilá”. Right in my Twitter feed.

    Unfortunately, the companies for which I edit are only interested in their writers getting the story told well. It’s up to the editor to handle all the rest. I average 1500 – 2000 grammar and punctuation changes *per book*. I asked one of my clients if they would like me to prepare a brief guide for their writers. Their reply? They won’t read it anyway. Sheesh!

    Okay, enough grousing. Thanks for the article, it will definitely go into my “Keepers” file.

    • K.M. Weiland | @KMWeiland says

      Yikes! And, yes, actually, this post was inspired by some of the common mistakes I’d see back when I ran a consultation service.

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