Each principle is rewritten in plain English and tied to real team behavior.

1. Deliver value frequently and learn fast.
2. Welcome changes — even late ones.
3. Ship working software regularly.
4. Business + tech must collaborate daily.
5. Build projects around motivated people.
6. Communicate face-to-face whenever possible.
7. Working software is the measure of progress.
8. Maintain a sustainable pace.
9. Technical excellence improves agility.
10. Simplicity — maximize “not doing.”
11. Self-organizing teams produce the best results.
12. Reflect and improve every sprint.