This example displays population counts for New York State counties as a series of horizontal black bars, with each bar’s width proportional to the county’s population value. The visualization uses D3.js v7 to load CSV data from a GitHub repository, parse the population strings into integers, and bind that data to SVG rectangles. The code employs `d3.csv`, `d3.select`, `attrs`, and `enter().append('rect')` to render the chart, with a simple title added via `insert("h3", "svg")`.