This example shows a simple bar chart of fuel economy values for a collection of cars, with each bar’s length proportional to miles per gallon. The visualization uses the p5.js library’s `loadTable` function in `preload()` to fetch a CSV file from a GitHub Gist, then iterates through the `economy (mpg)` column in the `draw()` loop to render rectangles on an 800×800 canvas. The data source is the provided `cars.csv` file.