This bar chart displays the population of twenty countries in 2010. The visualization is implemented with a React front-end and renders SVG graphics. It uses D3 version 5 APIs including `scaleBand`, `scaleLinear`, and `max` from the `d3` module to map data. Country names are shown on the y-axis, while the x-axis displays population counts formatted with `format('.2s')` and a custom tick label converter. The data is loaded asynchronously from a CSV file using D3's `csv` function.