Your style guide needs examples, not aspirations
Most style guides fail because they're written like manifestos
You've seen them: "Keep it conversational. Write with clarity. Be concise." Great. Now two editors are arguing about whether a sentence qualifies, and nobody can point to a rule that settles it.
A useful style guide shows the choice, not the virtue. It doesn't say "avoid jargon"—it lists the three internal terms your team uses that readers won't understand and provides the replacement. It doesn't say "write scannable content"—it shows a before-and-after paragraph with the specific changes that made it scannable.
Write pairs, not principles
Every rule in your style guide should include:
- The thing you don't want
- The thing you do want
- Why the second one works better in your context
Not "use active voice." Instead: "We don't write 'Your request was received.' We write 'We received your request.' The reader knows who did the thing."
Not "be consistent with terminology." Instead: "Pick one: 'log in' or 'sign in.' We use 'log in' because that's what the button says and we're not making people translate."
Steal real sentences from your own content
Open five recent posts. Find the sentence someone revised during editing. That edit—whatever it was—belongs in your style guide as an example pair.
If three people independently changed "utilize" to "use," you have a style rule. If someone always cuts the same hedge phrase, document it. If you keep moving the thesis sentence to the front of the introduction, write that pattern down with the before-and-after.
Your style guide should feel like a collection of arguments you've already won, not a list of standards you hope people will meet someday.
Scope it to decisions you actually make
Don't copy AP style's entry on state abbreviations if you never write about states. Don't include a section on serial commas if everyone on your team already uses them and nobody's confused.
Your style guide covers the fork-in-the-road moments where two people would make different choices. If there's no disagreement, there's no need for a rule.
When you catch yourself explaining the same edit twice, that's your cue. Write the example pair, add it to the guide, link the next person to it.
Make it searchable, not comprehensive
You don't need a ruling on every possible sentence. You need fast answers to recurring questions.
Organize by the question someone's trying to answer: "How do we write button text?" not "Chapter 4: Interface Copy Principles." Let people search for the word they're uncertain about. If your guide has a table of contents that takes thirty seconds to scan, it's not a guide—it's a liability.
Keep it short enough that someone can read the whole thing in ten minutes and still remember half of it. Anything longer becomes the document people should read but don't.
Update it when the argument happens
The moment two people disagree about a style choice and someone makes a call, that decision goes in the guide. Not later. Not when you "clean it up." Right then, while you still remember why it mattered.
This is how your style guide stays linked to the work instead of drifting into aspiration. It's a record of the specific problems your team has already solved, written in the vocabulary of the people solving them.
If you're setting up content workflows for the first time, your draft folder structure and your style guide should evolve together—both are about naming what you're doing clearly enough that the next person doesn't have to guess.