This example shows a horizontal bar chart comparing the 2020 estimated populations of 20 countries, with each bar’s length encoded by population value and labeled along the left axis. The visualization is built with React and D3 v5, using `scaleBand` for the categorical country axis, `scaleLinear` for the population scale, and `format('.2s')` to abbreviate tick labels (e.g., “B” for billions). Data is loaded as CSV via `csv()` from a remote GitHub URL, with numeric values multiplied by 1000, and rendered as SVG `<rect>` elements with tooltips.