Data Visualization

Still the best escape hatch when the chart does not fit a prefab grammar.

Fast path from tidy data to sensible charts without giving up composition.

The cleanest JSON grammar for interactive charts, editors, and code generation.

The serious browser stack for dense maps, layered views, and GPU-scale data.

The grammar that made statistical plotting feel systematic instead of ad hoc.

Python's cleanest route to interactive statistical graphics via Vega-Lite.

What newsrooms use when clarity, annotation, and publishing speed all matter.

Markdown plus SQL for data products that read like docs, not BI sludge.

holtzy/data_to_viz

A chart chooser that earns its keep by also warning you where charts fail.

Financial-Times/chart-doctor

Sample files from the FT's Chart Doctor column, useful for newsroom craft.

holtzy/R-graph-gallery

Hundreds of worked R examples with code practical enough to steal from.

vega/vega-datasets

The shared example dataset repo behind a lot of Vega, Altair, and demo work.

uwdata/mosaic

Research code for linked views over very large data with DuckDB in the loop.

apache/superset

The largest open self-serve analytics codebase, worth reading even if you never deploy it.