This example visualizes the top 10 most populous countries using a horizontal bar chart, drawing on 2018 population estimates from World Population Prospects 2017. The chart uses d3.scaleLinear and d3.scaleBand scales, with d3.axisBottom and d3.axisLeft for custom axes. The y-axis ticks are stripped of domain lines, while the x-axis uses a tick format that converts billions to "B" via d3.format. Axis labels and a title are added as SVG text elements, with data loaded from a CSV file using d3.csv.