This horizontal bar chart shows population figures for 20 countries in 2010, with each bar’s length representing the population value and country names listed on the vertical axis. The visualization uses React components to render SVG elements, with d3.scaleBand for the categorical y-axis and d3.scaleLinear for the numeric x-axis. Population values are formatted using d3’s format function, converting units to billions with the letter B. Data comes from a CSV file loaded via d3.csv, and hover tooltips display the exact formatted population using SVG title elements.