This bar chart displays the top 10 most populous countries using 2018 estimates from the United Nations World Population Prospects. It features customized axes with shortened population labels (e.g., "1.41B") and a clean, sparse design. The visualization uses D3 v5 with `scaleBand` and `scaleLinear`, plus `axisBottom` and `axisLeft` for ticking. The SVG render includes horizontal grid lines and a labeled x-axis, demonstrating explicit axis customization through tick formatting and removal of default decorations.