Creating a Stacked Bar Chart with Multiple Categorical Variables in ggplot2 Using facet_grid

Flipping ggplot2 Facets for a Cleaner Plot

Faceting Histograms with Total Observation Counts in ggplot2, R: A Simplified Approach Using ggplot2's Built-in Summarise Function

Addressing Overlapping Data Columns in ggplot2 Facet Grids

Mastering Facet Grids: A Guide to Consistent Row Heights in R Visualizations