The short version
Data storytelling is turning analysis into a decision: choosing the one comparison that matters, showing it so it cannot be misread, and saying plainly what should happen next. It is why two people with the same numbers get different outcomes in the room.
What it actually is
Every data story has three layers: the claim (what you found), the evidence (the chart or number that shows it), and the stakes (why anyone should act). Dashboards dump evidence; storytellers lead with the claim and let the evidence defend it.
Why it beats more analysis
Decisions are made by people with ten minutes and three other meetings. The analyst who compresses a week of work into one honest chart and one sentence of recommendation gets acted on; the one who presents forty slides gets a follow-up meeting.
How to think about it
Start from the decision, not the data. Ask what the audience needs to believe to act, then pick the single comparison that tests it: against last quarter, against target, against the alternative. One chart per claim, title as the takeaway.
