This example visualizes laptop sales data for the top ten companies using a horizontal bar chart rendered as SVG. The visualization loads data from a CSV file and displays each company’s sales as a green rectangle bar. Built with React and D3 v5, the code uses `csv` for data loading, `scaleBand` and `scaleLinear` for positioning, and React’s `useState` and `useEffect` hooks to manage state. The chart includes axes with blue tick lines and company labels.