Quick answer
A useful voice guide combines real examples of how you speak with rules for making factual claims and giving advice. Write it so someone can apply it to a draft and explain why a sentence fits.
Collect examples you actually like
Choose a few approved posts, interview clips, emails, or transcripts that sound natural to you. Find examples from different situations, such as explaining a technical concept, answering a skeptical question, and telling a short story. Highlight the specific choices you like. Maybe you name the tradeoff early, use numbers only with context, or explain unfamiliar terms with a familiar example.
Collect examples from real conversations too. A polished newsletter may sound different from the way you talk to a customer. Both can belong in the guide if you label when each style fits.
Write rules someone can follow
Replace broad adjectives with instructions. “Sound smart and approachable” leaves too much to guess. “Name the decision in the first two sentences, then use one example from work” tells a writer where to start. Add a short before-and-after example. “Optimize for more efficient onboarding” could become “Ask only for the details you need to get a new customer started.”
Include rules about substance. Specify when a draft needs an approved source, which customer details require permission, and which conclusions you are willing to draw from one example. Add terms you want used accurately, such as “qualified inquiry” or “client acquisition.”
Test and update it on real drafts
Ask a writer or AI tool to draft from one approved source using the guide. Review the result and record where it missed. If it repeats your favorite phrase everywhere, replace the phrase rule with an example of the judgment behind it. If it uses your tone while inventing a story, strengthen the instruction about evidence. Add two or three examples from final approved drafts after several weeks. Keep the guide short enough to consult during every review, and link to a larger sample bank when you need it.
Key takeaways
- Use real examples to show what abstract style words mean.
- Include rules for evidence, permissions, and approvals.