This example shows a horizontal bar chart of total sales for product sub-categories, with bars rendered in blue on an SVG canvas. It uses React to manage state and lifecycle, while d3’s `csv` loads the dataset and `scaleBand` and `scaleLinear` map the categorical and numeric ranges. The chart draws gridlines and tick labels via `xScale.ticks()`, and each bar’s width represents sales value. The data is fetched from a GitHub gist URL.