25 Writing Rules Every Substack Creator Should Know
If you're creating content on Substack, you need to master these 25 writing rules based on 'The Elements of Style.'
The best Substack writers are not the fanciest. They are the clearest. These 25 rules, inspired by The Elements of Style, will help you write better posts, sharper emails, and stronger paid newsletters.
I love AI. I use it every day to move faster, outline ideas, and clean up drafts. But speed is not skill, and polish is not voice.
AI can make average writing look decent. Grammarly can catch your commas. Neither can give you taste, conviction, or a point of view people actually give a damn about. If you are a great writer, you have a huge advantage right now, because so many creators depend on tools to sound smarter than they are.
That edge matters on Substack. Your words build trust, hold attention, and sell the next click, reply, or subscription. Clear writing is not just a craft skill. It is a money skill.
The internet changed the format, not the fundamentals. Strong writing still comes from clear thinking, clean structure, and ruthless revision. If you want better hooks, better retention, and better conversion, start here.
Build the foundation before you draft
1. Start with one clear point
Every piece needs one job. Teach one lesson, tell one story, make one argument, or sell one next step. When a post tries to do all four, it usually does none of them well.
Before I draft, I ask one simple question: what should the reader know, feel, or do by the end? That answer becomes the spine of the piece. If you cannot say the point in one sentence, the draft is not ready.
2. Choose a shape before you write
A blank page gets easier when you pick a format first. You might write a how-to, a case study, a personal story, a list, a teardown, or a manifesto. Structure is not a prison. It is support.
A lot of creators start typing and hope the idea reveals itself. That is how you end up with a messy middle and a weak ending. Pick the container first, then fill it with substance.
3. Make each paragraph do one job
Paragraphs are not decoration. They are the reader’s path through your thinking. Each paragraph should carry one idea, then hand the reader cleanly to the next one.
This matters even more on Substack, where many people read in email. Giant blocks of text feel heavy on a phone screen. Short, focused paragraphs make your writing easier to scan and easier to trust.
4. Write for the reader, not your ego
A lot of weak writing is just performance. The writer wants to sound brilliant, deep, or poetic, so the reader gets buried under cleverness. That game does not work for long.
I want my reader to feel smarter after reading me. That means I cut the showing off and keep the useful stuff. If a sentence serves my ego more than the reader, it goes.
5. Be clear before you get clever
A clever line can be fun. A clear line gets read. When those two things work together, great. When they fight, clarity wins every time.
This is where many creators lose people in the first paragraph. They open with vague metaphors, winding setup, or some dramatic line that hides the point. Say the thing cleanly, then make it sing.
Make every sentence stronger
6. Use active voice
Active voice makes writing feel alive. Someone does something. The reader sees movement, responsibility, and momentum right away.
Compare these two lines: “The newsletter was launched last spring” and “I launched the newsletter last spring.” The second line has a person in it, a choice in it, and a pulse. Use active voice unless you have a real reason not to.
7. Put statements in positive form
Say what is true, not what is not true. Positive statements feel stronger, cleaner, and easier to remember. They also sound more confident.
Instead of saying, “Don’t be inconsistent with your posting,” say, “Publish every Tuesday.” Instead of saying, “Your offer should not be vague,” say, “State the outcome clearly.” Readers move faster when the instruction points forward.
8. Use specific, concrete language
Vague writing sounds safe, but it kills trust. Readers need details they can picture, measure, or act on. Specificity makes your writing feel real.
Do not promise “better engagement.” Promise “more replies from your welcome email” or “a higher free-to-paid conversion rate.” Concrete language turns a fuzzy claim into something useful.
9. Omit needless words
This rule is legendary for a reason. Most drafts have extra setup, repeated ideas, and filler phrases that do nothing but slow the reader down. If a word adds no meaning, cut it.
Phrases like “I just wanted to share,” “it’s important to note,” and “in my personal opinion” are usually dead weight. Get to the point faster. Your reader will thank you.
10. Put your strongest words at the end
The end of a sentence carries force. It is where the reader lands. That is a terrible place to waste on a weak phrase.
If you are writing a hook, a lesson, or a CTA, let the sentence finish with the word that matters most. “This strategy grew my list” is fine. “This strategy grew my list by 4,000 readers in 90 days” lands much harder.
Improve flow and readability
11. Stop writing loose, wandering sentences
Loose sentences drift. They keep adding thoughts with “and,” “but,” “which,” and “so,” until the reader forgets where the sentence started. That style feels casual, but it often feels sloppy too.
I break long, wandering lines into cleaner units. One sentence can set up the point. The next can sharpen it. The next can punch it home. That rhythm keeps the reader moving.
12. Use parallel structure
When ideas match, the structure should match too. Parallel structure makes your writing feel smoother and easier to process. It is a small move with a big effect.
For example, write “write clearly, sell honestly, and publish consistently.” Do not write “writing clearly, honest selling, and to publish consistently.” Matching forms make the sentence feel finished.
13. Keep related words close together
When related words get pulled apart, the sentence gets foggy. The reader has to work harder to connect the meaning. You never want your audience doing extra labor.
Put the subject near the verb. Keep modifiers close to the words they describe. Say, “Send paid subscribers the bonus on Friday,” not some twisted version that hides the point in the middle.
14. Keep tense steady
A tense shift can confuse the reader fast. If you are telling a story in past tense, stay there unless time actually changes. If you are summarizing a process in present tense, keep it clean.
This shows up a lot in creator writing. Someone starts with, “I launched this last year,” then slips into, “This is what happened,” then ends with, “The next day I am seeing results.” Pick a lane and stay in it.
15. Control rhythm with sentence variety
Great writing has movement. If every sentence is long, the piece drags. If every sentence is short, the piece starts to sound robotic.
I like to mix lengths on purpose. A longer sentence can explain the idea. A medium sentence can guide the reader. A short sentence can hit like a hammer.
Fix the mistakes that kill trust
16. Learn the comma before you try to sound smart
Bad comma use makes strong ideas look messy. You do not need to obsess over every rule, but you do need the basics. Readers may not name the mistake, but they feel the friction.
Learn the serial comma. Learn how to set off parenthetical phrases. Learn not to join two full sentences with a comma and call it a day. Clean punctuation makes your writing feel more professional.
17. Use punctuation marks for a reason
A colon introduces what comes next. A dash creates interruption or emphasis. Parentheses soften a side note. Quotation marks signal exact language. Each mark has a job.
Writers often sprinkle punctuation for drama. That usually creates noise, not style. Use marks with intention, and your writing will feel calmer and stronger.
18. Format for skimming
Online writing is visual. That means readability is not only about sentences. It is also about headings, white space, numbering, and clean section breaks.
Substack readers scan before they commit. Help them see the shape of the piece fast. Good formatting keeps them around long enough to read the good stuff.
19. Respect grammar basics
You do not need to write like a textbook. You do need to know the basics well enough that mistakes do not distract the reader. Subject and verb should agree. Pronouns should make sense. Possessives should be clear.
A few errors will not destroy a piece, but a pattern of sloppiness will. Clean grammar signals care. Care builds credibility.
20. Make sure your opener points to the right subject
This is the classic dangling opener problem. It happens when the beginning of a sentence points at the wrong person or thing. The result is funny when you want serious, and confusing when you want clear.
For example, “Walking through my launch, the pricing mistake became obvious” is off. The pricing mistake was not walking through anything. “Walking through my launch, I spotted the pricing mistake” fixes it.
Develop a style readers remember
21. Choose plain English over business sludge
A lot of creator writing gets infected by corporate language. Suddenly people are “leveraging frameworks” and “finalizing initiatives” instead of saying what they mean. That kind of language feels inflated and weak.
Plain English is stronger. “Use” beats “utilize.” “Start” beats “commence.” “Finish” beats “finalize.” If a simpler word does the job, pick the simpler word.
22. Write with nouns and verbs
Strong nouns and verbs do the heavy lifting. Weak writing leans too hard on adjectives, adverbs, and filler. When the core words are strong, the sentence barely needs decoration.
“Sales climbed after the welcome sequence changed” has energy. “We experienced really meaningful growth after implementing strategic improvements” sounds like a LinkedIn ghost wrote it. Pick words with muscle.
23. Cut qualifiers and hedges
Words like “really,” “very,” “kind of,” “somewhat,” and “pretty” often water down a sentence. So do hedges like “I think,” “maybe,” and “it seems like,” when you are making a point you actually believe. Too many qualifiers make your writing sound scared.
This does not mean you should fake certainty. It means you should say what you know cleanly. Confidence comes from precision, not puffery.
24. Revise harder than you think
Good writing rarely arrives finished. The first draft finds the idea. The next draft shapes it. The best draft cuts what no longer earns its place.
I revise for structure first, then clarity, then rhythm. I move sections, tighten openings, kill repetition, and read the piece out loud. That last pass catches more weak writing than any tool ever will.
25. Use AI after the draft, not instead of the craft
AI is a tool, not a substitute for skill. It can help you brainstorm headlines, tighten a section, repurpose a post, or test a stronger CTA. That is useful, and I use it all the time.
But here is the truth: AI can make you seem like a great writer. It cannot make you one. Grammarly can clean a sentence. It cannot give that sentence a brain, a backbone, or a voice. If you can truly write, you have a massive advantage over creators who depend on prompts and software for every paragraph.
The five-minute edit I use before I hit publish
Before I send a post, I run a fast check. It saves me from lazy writing and protects the reader’s attention. These are the questions I ask every time:
Is the point clear by the second paragraph?
Does each section do one job?
Did I cut vague claims and filler phrases?
Did I use specific language and active voice?
Does the ending land with force?
Would this still sound like me without AI?
Did I make the next step obvious?
Is this clean enough to earn the reader’s trust?
Writing well is one of the highest leverage skills you can build. Better writing gets more opens, more replies, more shares, more sales, and more trust. It compounds for years.
AI will keep getting better. Editing tools will keep getting smarter. That is fine with me. The creators who think clearly, write cleanly, and revise hard will still win, because the tool can polish the page, but the writer still makes the work matter.