This bar chart displays the world’s top 10 revenue-generating athletes, showing their total pay in millions of dollars. It highlights how D3 axes can be customized with blue tick labels and red gridlines. The code uses React hooks with `useState` and `useEffect` to fetch CSV data, then renders SVG rectangles via D3’s `scaleBand` and `scaleLinear`. Custom axes are drawn manually, while the chart loads data from a GitHub gist URL.