Professional certificate · Autumn 2026

Data Storytelling for Analysts

Turn the numbers you already have into a case your organisation acts on.

Taught by Dr. Feike Bergsma, data journalist, with Ruben Ilic, visual editor · Kade Instituut, Rotterdam

This programme is for analysts, policy officers and researchers who produce sound numbers that nobody acts on. Over eight weeks you rebuild a piece of your own reporting — one dataset, one chart, one five-minute story — with weekly feedback from a working data journalist.

By the final evening you present that work to the group and leave with a version you can send to your director the next morning.

What you will learn

  • Explain the trade-offs between a bar chart, a line chart and a plain table for a given question, and defend the choice to a sceptical stakeholder.
  • Build a three-chart narrative that carries an audience from finding to decision in five minutes.
  • Evaluate a colleague's chart against a checklist of scale, colour, labelling and denominator errors.
  • Rewrite a dense results table as one annotated chart with a headline a reader can quote back to you.

Programme

Finding the story in the data

Weeks 1–2 · 8 hours

Interrogate a dataset until it yields one claim you are willing to defend in writing.

  • The question behind the request
  • Exploratory charts you throw away
  • Base rates, denominators and outliers
  • Writing the one-sentence finding

Choosing the right chart

Weeks 3–4 · 8 hours

Match the chart form to the comparison you are actually making.

  • Comparison, composition, distribution, correlation
  • When a table beats a chart
  • Scales, axes and the zero-baseline argument
  • Colour as data, colour as decoration

Designing for the reader

Weeks 5–6 · 8 hours

Strip a chart back until only the message survives.

  • Hierarchy, annotation and direct labelling
  • Accessible colour and type contrast
  • Small multiples and the density budget
  • Rebuilding a published chart, critique included

Telling it in the room

Weeks 7–8 · 8 hours

Carry the finding into a meeting and leave with a decision.

  • Structuring the five-minute version
  • Answering the hostile question
  • Portfolio clinic and dry run
  • Final presentation and peer review

Join the autumn group

Eight Tuesday evenings, 18:30–20:30, at Wilhelminakade 312 in Rotterdam. Sixteen places, so that everyone presents twice.

€ 1.450 including the reading pack, tutor feedback and the final portfolio review. Invoiced to your employer on request.

Starts 15 Sep 2026

Reserve a place