A scatter plot maps daily sales over time, using D3.js v7 with `d3.scaleLinear` for axes and `d3.scaleOrdinal` with `d3.symbolsFill` to encode product categories as distinct point shapes. A legend, built via `d3.symbol`, lists each category. Data loads from a remote CSV file, parsed with `d3.csvParse` and `d3.timeParse`; sales figures are numeric. The chart includes labeled x- and y-axes, and points render as SVG paths within an HTML page styled by CSS.