Literature

Cheatsheets which are provided by RStudio contain information about single topics and R-packages (e.g. ggplot2 (Wickham 2016), dplyr (???), etc.).

References

Wickham, Hadley. 2016. Ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag New York. https://ggplot2.tidyverse.org.