This visualization compares the populations of the top 10 most populous countries, sorted from largest to smallest. It uses D3 v6 (imported via `d3.v6`), with `scaleLinear` for the population axis and `scaleBand` for the categorical country axis. The chart is rendered as an SVG, with axes customized via `axisBottom` and `axisLeft`, and the data comes from the 2018 estimate in the United Nations World Population Prospects 2017.