This example demonstrates a small multiples chart using D3.js merge() to create a grid of line-area charts. Each panel displays time-series data for a character (star, boo, toad) with a colored line and semi-transparent area. The code uses d3.create, d3.scaleBand, d3.scaleLinear, d3.line, d3.area, and d3.set. Data groups are entered, merged, and positioned with panels per row, while images and titles label each chart.