This example shows a bar chart of the top 10 most populous countries using data from the United Nations World Population Prospects 2017, with population values from a CSV file. It demonstrates customization of D3 axes, including tick formatting with the `format` API to abbreviate numbers, removal of the domain and tick lines, and the addition of custom axis labels. The chart uses `d3.csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` within an SVG rendered via D3 v5, with styling applied through CSS.