Chartosaur Blog

Spain's Fiscal Profiles

The Age Groups Paying In vs. Taking Out

This chart packs in multiple tax types, spending categories, and every single age from 0 to 90.

Why Hexagons?

The Washington Post mapped 121,000 TikTok using viewing patterns alone. But why did they use hexagons to bin the data?

F1 2025

Breaking Down the Championship Win Scenarios

As the 2025 F1 season enters its final stretch, multiple drivers still have mathematical chances at the championship. Let's visualize exactly what needs to happen for each contender.

Social Trust on a Line

Pew's social trust chart is a clean diverging bar layout that makes Can vs. Cannot obvious at a glance.

The NYT Approach to Busy Line Charts

This chart from the NYT tracks global birth rates over 60+ years. It shows 15+ lines without becoming visual chaos. We explore how NYT uses color hierarchy to guide your eye and declutter a busy chart.

Another A.I. Model, Another Chart Sin

Claude Opus 4.5 launched yesterday. The benchmarks look impressive, but the promotion charts might be slightly exaggerating its performance lead.

Visualizing My Journey to 100k followers

Not all posts are created equal. After analyzing 72 posts since I've launched @chartosaur on instagram, a clear pattern emerged: a small number of viral posts drove the majority of growth. Here's what really matters for social media growth.