Chartosaur Blog

Practical takes on data visualization and storytelling.

F1 2025

Breaking Down the Championship Win Scenarios

December 5, 2025|
F1Sports AnalyticsScenario AnalysisBronto Explores
F1 2025: Breaking Down the Championship Win Scenarios
Bronto Explores

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

December 3, 2025|
Diverging barsCommentary
Social Trust on a Line
Chart by Pew Research Center

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

November 29, 2025|
Line ChartsColor HierarchyVisual ClarityCommentary
The NYT Approach to Busy Line Charts
Chart by The New York Times

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

November 25, 2025|
Bar ChartsMisleading ChartsCommentary
Another A.I. Model, Another Chart Sin
Chart by Anthropic

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

November 22, 2025|
Data StoryData DiveBronto Explores
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.

Two Panel Chart Design

Why Color Choices Matter

November 19, 2025|
ColorStacked AreaMulti-Panel
Two Panel Chart Design: Why Color Choices Matter
Source: IEA

This IEA figure shows powertrain mix and regional sales. The layout works, the data is clear. But one design choice quietly suggests connections that aren't there.

Choosing Histogram Bins

A Mathematical Starting Point

November 16, 2025|
ToolsHistogramsResource
Choosing Histogram Bins: A Mathematical  Starting Point

Calculate a good starting point for optimal histogram bins from your data. A practical guide to the Freedman-Diaconis rule.

Social Media Usage

When Small Multiples Beat a Single Chart

October 14, 2025|
Small MultiplesLine ChartsTrendCommentary
Social Media Usage: When Small Multiples Beat a Single Chart
Source: @gregisenberg

The win here isn’t the data, it’s the layout. Small multiples for each age group in light blue, plus one dark-blue total. You see the pattern for every segment and the pattern for the world without six lines wrestling on one chart.