This visualization displays a scatter plot of Iris flower measurements, plotting sepal length against petal length and encoding species using different symbol shapes. Each species appears as a distinct geometric marker with a corresponding legend positioned on the right. The code uses d3.scaleLinear for coordinate scaling, d3.scaleOrdinal with d3.symbolsFill for shape encoding, and d3.axisLeft/axisBottom for axes. Data is loaded asynchronously from a CSV file and parsed with d3.csvParse, while the scatter plot, axes, and legend are each structured as reusable D3 modules.