This example displays a horizontal bar chart of 2019 UN population data for nine countries, using a linear x-axis for population values and a banded y-axis for country names. The visualization renders as SVG and combines React state management with D3 utilities: `csv` loads the dataset, `scaleLinear` and `scaleBand` construct the axes, and `max` computes the domain. React's `useState` and `useEffect` handle data loading, while manual tick generation from `xScale.ticks()` draws grid lines and labels.