The most important #dataviz principle you need to know: ✨ signal-to-noise ratio ✨

💎 The message of your chart is your SIGNAL: everything on your chart should align with the message, and should help conveying that message.

(1/4) 💩 Everything else is potential NOISE, or clutter: if you can remove an element from your visual and it doesn't harm the message, that means it might have been a distraction for your audience.

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⚠ Warning: this chart is lying to you!

🍬 The chart in this example is trying to suggest a strong correlation between sugar intake and obesity in the US between 1980 and 2000. It does so by carefully choosing the vertical axis ranges so both lines nicely align.

(1/5) 🧐 But with a closer look we can see something else is going on. Sugar intake levels are rising by 30% (from 85g to 110g), while obesity prevalence is rising by 164% (from 14% to 37% of the population). For an accurate comparison, these lines shouldn't nicely align at all!

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Hoi allemaal! Ik heb veel verontwaardigde tweets zien voorbij komen over de € 1 miljoen subsidie aan DPG Media.

Terecht? Mogelijk. Ik doe op dit account geen politieke uitspraken. Maar van subsidies ken ik wel iets, dus ik heb toch even een draadje gemaakt.

⬇ Full transparancy: van 2015 tot 2018 was ik subsidieconsultant bij @EY_Belgium. Sinds eind 2019 begeleid ik nog wel eens subsidies voor @Konnekto_ (naast mijn hoofdbezigheid als informatiedesigner).