This example presents a library book statistics tool with two parts: a data summary panel and a static SVG illustration. Users paste a raw CSV URL, and the code loads the data using D3 v7’s `d3.csvParse` with `d3.autoType`, then displays row counts, column names, and per-column analyses distinguishing numeric fields (with min/max/mean via `d3.min`, `d3.max`, `d3.mean`) from categorical ones (with unique counts). The adjacent SVG shows five required elements—rect, circle, polygon, line, and text—whose shapes are styled through CSS.