18 Bibliography

Arnold, Taylor, and Lauren Tilton. 2015. Humanities Data in R. New York, NY: Springer Science+Business Media.

Hadley, Wickham. 2014. Advanced R. London: CRC Press.

———. 2016. Ggplot2: Elegant Graphics for Data Analysis. New York, NY: Springer Science+Business Media, LLC.

Hadley, Wickham, and Garrett Grolemund. 2016. R for Data Science: Import, Tidy, Transform, Visualize, and Model Data. Boston: O’Reilly.

Healy, Kieran. 2018. Data Visualization: A Practical Introduction. Princeton, NJ: Princeton University Press.