A horizontal bar chart displays the top 10 most populated countries, with population values scaled in billions and abbreviated tick labels. The chart customizes its axes by removing domain lines and tick marks from the y-axis, while the x-axis uses a custom tick format that converts G (giga) to B (billion). Built with D3 v7, the visualization loads data from a CSV file and renders to SVG, using scales like `scaleLinear` and `scaleBand` alongside `axisLeft` and `axisBottom` to position bars and labels.