This area chart visualizes world population growth over time, showing the upward trend across the years with a maroon-filled curve. The chart uses D3 v5 to load CSV data, create time and linear scales, and generate the area shape with the `area()` and `curveBasis` APIs. Grid-pattern axes are drawn with `axisLeft` and `axisBottom`, while custom formatting converts large population numbers into billions. The SVG rendering includes labeled axes, a title, and styled tick marks, with data sourced from a CSV file hosted on VizHub.