This visualization displays income levels for the top 20 countries using a horizontal bar chart rendered as SVG. The chart maps each country’s income to bar width via a d3.scaleLinear x-axis, while a d3.scaleBand y-axis positions the bars by country name. React’s useState and useEffect hooks load and parse the CSV data, and d3.csv fetches the dataset, which is then sliced to the first 20 rows. The visualization demonstrates a clean, static comparison of income values with labeled axes and blue gridlines.