This example displays the top 10 most populous countries as horizontal bars, with country names on the y-axis and population counts on the x-axis. It uses React components and d3.scaleBand and d3.scaleLinear to map data from the United Nations World Population Prospects 2019 dataset. The SVG rendering includes d3.csv for data loading, custom tick formatting with d3.format, and tooltips via SVG title elements.