This bar chart displays the 2018 population estimates for the ten most populous countries, using data from the United Nations World Population Prospects 2017. The visualization ranks countries along a horizontal bar layout, with population values on the x-axis and country names on the y-axis. Built with D3 v5, the example creates linear and band scales (`d3.scaleLinear`, `d3.scaleBand`) and customizes the axes using `d3.axisLeft` and `d3.axisBottom`. The SVG bars are rendered with a steelblue fill, and country labels are styled with a larger font size.