I found this link
It is also interactive.
Can I know what lib they are using?
I found this link
It is also interactive.
Can I know what lib they are using?
Looking at the Javascript assets, it looks like it's loading d3.js and topojson. The map itself is an SVG, so likely generated using D3.
this page use one js file for draw chart : chartbeat.js download chartbear.js