A bar chart displays the sales of various coffee products from a CSV dataset. It uses D3.js v3, loading data with `d3.csv` and rendering the chart with SVG. The x-axis uses `d3.scaleBand` for product categories, while the y-axis uses `d3.scaleLinear` for sales values. Bars are drawn as `rect` elements filled with steelblue and labeled with rotated text on the bottom axis. The visualization directly shows comparative sales figures across the coffee product lineup.