This horizontal bar chart displays the top 30 countries by population in 2020, with bars extending from the left edge and a logarithmic-free linear scale for population values. The visualization uses D3 v7’s `scaleBand`, `scaleLinear`, `axisBottom`, and `axisLeft` APIs, rendering SVG rectangles via a data join. Light green bars represent each country, with a custom tick formatter converting numeric values to abbreviated formats like “B” for billions. Population data is loaded as CSV from GitHub and sorted descending before filtering to the top 30 entries.