R programming has changed a lot in the past 10 years or so. This includes a big change in the tools used for visualization. The R package ggplot2 (Wickham, Chang, et al. 2018Wickham, Hadley, Winston Chang, Lionel Henry, Thomas Lin Pedersen, Kohske Takahashi, Claus Wilke, and Kara Woo. 2018. Ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics. https://CRAN.R-project.org/package=ggplot2.) is at the heart of one modern style of R visualizations. I’ll focus on this style throughout this workshop, as I think it’s an excellent tool for creating attractive and useful visualizations in a way that is both efficient and easy to customize (once you get the hang of it).