NO. 01 — DATA VISUALIZATIONISSUE SEPTEMBER 2026
cleardataviz.

DATA THAT speaks,
dashboards that WORK

We’re flooded with information. Whoever turns information into something visual processes it faster — that’s what data visualization is about. Of course it can look good, but a visualization is a means: the form serves the message.

Unfortunately, visualizing is still too often the last step of a BI project — the neglected stepchild. While that’s exactly where the decision gets made. I flip that order: first the reader’s question, then the form, then the data. See three examples →

FROM THE FIELD

“Form follows function. A chart succeeds when the message lands at a single glance.”

AFTER ALBERTO CAIRO — THE FUNCTIONAL ART

THE SHOWCASE — TRY IT YOURSELF

THE SAME DATA, two stories

Revenue by region, second quarter

REVENUE BY REGION — Q2
020406080100
NRD
OST
MID
ZWL
ZUD
WST
RDM

ALPHABETICAL · SEVEN COLORS · NO TARGET — WHERE SHOULD YOU LOOK?

THREE ROUTES

PICK YOUR ENTRY

01ROUTE

INFORM

The 9.5 practical tips as a one-hour presentation — optionally with a workshop on your own dashboard.

MORE →
02ROUTE

INSPIRE

One-day data visualization training, hands-on and available in-house.

MORE →
03ROUTE

CREATE

Prefer to outsource it? I design and build your visualizations — or we work on it together, on the job.

SEE THE WORK →
SECTION — THE RULES

9.5 TIPS for clearer data

Drawn from the work of Tufte, Few, Cairo, and Kirk: see what commonly goes wrong and how to prevent it. Apply the rules and help your manager, team, or peers make better decisions. Read all the tips →

One of the few trainings where I didn’t nearly fall asleep once.

K. MUNNIK — MANAGEMENT INFORMATION, ABN AMRO

Very practical training, directly usable, great atmosphere.

A. VAN GEENE — MI SPECIALIST, DELTA LLOYD

Applicable, lots of practical takeaways.

M. DE KEIJZER — VAN LANSCHOT BANKIERS
ALL REVIEWS →