The
Prompt
Engineering Guide
Get better results from AI
Nik Roberts · Versantus
You don't need a course. You need
5 rules
and a bit of practice. Every tip below works in ChatGPT, Claude, Gemini — anything.
1
Be specific about who you are
•
Tell it your role and audience.
AI writes differently for an accountant than for a retailer. Give it
context
.
Instead of
"Write some social posts"
Try
"I run a small accountancy firm in Bristol. Write 5 LinkedIn posts about what sole traders should do before the tax year end."
2
Say what you want, not what you don't
•
Positive instructions beat negative ones.
"Don't be salesy" is vague. "Write like you're recommending something to a friend" is
useful
.
Instead of
"Don't make it too long or formal"
Try
"Keep it under 100 words. Friendly and warm, like a text to a friend. No jargon."
3
Give it an example
•
Show, don't just tell.
Paste something you've already written that sounds like you. AI will
match the tone
far more reliably.
Try
"Here's a reply I sent last week: [paste it]. Write something similar for this new enquiry."
4
Iterate out loud
•
Treat it like a conversation, not a search bar.
The first answer is a draft. Say "shorter", "warmer", "more direct", "try again but for Instagram".
That's
prompt engineering.
5
Ask it to ask you questions
•
Flip the dynamic.
If you're not sure what to write, let AI figure out what it needs from you.
Try
"I need to write a quarterly update for our manufacturing clients. Ask me 5 questions before you write it."
6
Ready-made prompts to try today
•
Draft something you've been putting off.
"I need to write a proposal for [client/project]. Ask me 5 questions before you start writing."
•
Prepare for a difficult conversation.
"I have a difficult conversation with [role] about [topic] tomorrow. Role-play as them. Push back hard."
•
Get the 80/20 on a topic fast.
"I've got 10 minutes. Give me the 80/20 on [topic] — what's the 20% I need to know to understand 80% of it?"
•
Improve your own writing.
"Here's an email I'm about to send. Tell me what's unclear, what could offend, and how to make it half the length."
•
Rehearse a presentation.
"I'm presenting to my board about AI investment. Grill me on ROI, risks, and timeline."
•
See it through your client's eyes.
"Here's my proposal. Read it as my client would. What questions would they have?"