To get the most out of this book, you will need to install R on your computer, as well as the ggplot2 package. Additional packages, such as ggmap and GGally, will also be used in Chapter 7, Special Applications of ggplot2. In Chapter 1, Graphics in R, you will find a detailed description of how you can install R and additional packages on your computer. You will also find additional information concerning additional programming interfaces such as RStudio.