This bar chart displays the 2020 populations of 30 countries, sorted by country name along the y-axis. The visualization uses green horizontal bars to encode population values, with blue tick marks on the x-axis and a Poppins font for all text. The React application uses d3.scaleBand and d3.scaleLinear for scales, with d3.format for tick labels that convert large numbers into abbreviated forms. Data is loaded from a remote CSV file using d3.csv, and the chart renders as an SVG with interactive tooltips showing population values on hover.