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The open prompt-engineering reference

Learn to talk to AI. Free, forever._

From your first prompt to advanced engineering, a serious, clear, free guide. If it helps you, every donation goes entirely to NGOs that bring technology to those who lack access. The money never passes through us.

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The same site, three depths. Move at your own pace.

Beginner

I've never written a prompt

What a prompt is, why form matters, and how to get useful answers on the first try.

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Intermediate

I use AI at work

Structure requests, give context and examples, and build reliable everyday workflows.

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Advanced

I want advanced engineering

Chain-of-thought, tools, evaluation, security, and production patterns.

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How we teach

Every technique comes with the right way and the wrong way.

No empty theory. You see the prompt, the why, and the contrast side by side.

Free. If it helped you, 100% of the donation goes to the cause.
Prompt# role · task · format
You are a {reviewer}. Rewrite in formal tone, at most 3 sentences, keeping the numbers.
Do this
Rewrite in formal tone, max 3 sentences, keeping the numbers.
Avoid
make this nicer

Why free?

AI is the new literacy. And literacy isn't for sale.

Knowing how to use AI has become literacy. And literacy isn't for sale. Charging for it only deepens the inequality we want to fight. So the knowledge stays open and those who can give back fund digital inclusion for people who haven't even come online yet.