A bar chart displays the number of e-commerce healthcare orders for each state, sorted in descending order to highlight the states with the highest order counts. The visualization uses D3 v6 to load a CSV dataset from a GitHub gist, roll up the records by state, and render an SVG with an X and Y axis. Data processing relies on `d3.rollups`, `d3.descending`, and scaling via `d3.scaleBand` and `d3.scaleLinear`, while the bars are created with `d3.selectAll(...).join("rect")`. State labels are rotated for readability on the axis.