The visualization displays TikTok’s annual user growth from 2013 to 2022 using a smooth line chart layered over an area chart, drawn as SVG paths via d3.line and d3.area with curveBasis interpolation. It uses d3.scaleLinear for both axes, d3.axisBottom and d3.axisLeft for labeled ticks, and formats y-axis values with d3.format. Data is loaded from a GitHub-hosted CSV using d3.csv, with margins and axis labels styling the 930 by 450 pixel graphic.