This example demonstrates a pie chart and donut chart visualizing fruit quantities from a CSV dataset. Two animated SVG charts display proportional slices with labels, using a blue color scale to differentiate each fruit type. The visualization is built with D3 v4, utilizing `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` to generate the charts, while `transition.attrTween` animates the slices expanding from zero on load.