This example visualizes the 2020 population estimates for 30 countries using a horizontal bar chart rendered as SVG in React. Population values are shown on the x-axis via a linear scale, with countries listed on the y-axis using a band scale. The code employs D3 v5 functions like `csv`, `scaleLinear`, `scaleBand`, and `max` through `useData` to load and process data from a GitHub CSV file. Axis components and bars are built with custom React components, and hover tooltips display formatted population values using the `format` API.