A horizontal bar chart shows population estimates for the ten most populous countries, with China leading at over 1.4 billion. The visualization uses D3 v5’s `scaleLinear` for the x-axis, `scaleBand` for categorical y-axis positions, and SVG `<rect>` elements for bars. Data loads from an external CSV file and is rendered within a React application, with axes generated via `axisLeft` and `axisBottom`.