This horizontal bar chart displays the population figures for the top 30 countries in 2020, using the d3.scaleBand and d3.scaleLinear APIs to map country names and population values. The graphic presents light green rectangles for each country, with axes labeled "Countries" and "POPULATION-2020," and the population values are formatted in billions or millions using d3.format. The chart is rendered as an SVG using D3 v7, pulling data from a CSV file hosted on GitHub, and the population values are extracted specifically from the '2020' column for each row.