This bar chart displays the top ten most populous countries using 2018 estimates from the World Population Prospects 2017 dataset. A horizontal bar layout shows each country’s population, with bars scaled proportionally. The visualization uses d3.scaleLinear for the x-axis, d3.scaleBand for the y-axis, and renders with SVG. Axes are customized by removing default domain lines and ticks, while d3.axisBottom applies a custom tick format that converts SI abbreviations from 'G' to 'B'.