This D3.js example shows a straightforward bar chart of categorical data with axes and labels, visualizing values for five categories (A through E). The visualization renders as an SVG, using D3 v6's modular imports including `scaleBand`, `scaleLinear`, `axisLeft`, and `axisBottom` to map the dataset to bar positions and heights. The chart reads its data from a CSV file via `d3.csv`, converting the population column to numeric values, while the styling uses steelblue fills for the bars.