Customizing Pie Charts in ggplot: Adding Labels for Small Pieces

Clip Lines to Plot Area and Display Text Outside Plot Area with ggplot2 and Grid

Understanding ggplot2 and Plotting in R: The Secret to Avoiding Blank Graphs When Sourcing Scripts

Plotting Smoothed Areas on Maps from a Set of Points in R: A Comprehensive Guide to Linear Interpolation, Bézier Curves, and Beyond