| ggmemo-package | ggmemo: Add Arrows, Labels, and Change Annotations to 'ggplot2' Charts |
| annotate_callout | Add a callout annotation to a ggplot |
| annotate_change | Annotate the change between two data points on a ggplot |
| ggmemo | ggmemo: Add Arrows, Labels, and Change Annotations to 'ggplot2' Charts |