RStudio (recently re-branded as Posit) is an integrated development environment (IDE) for programming in both the R and Python programming languages. RStudio combines a number of different tools into a single application: source code editor, debugger, versioning control, environment and package managers, and more. This task sheet will give an overview of the user interface and some key features of RStudio. Installing R and RStudio are covered in GISTP 0021 - Getting Started with R and R Studio. Although RStudio works with Python, this series is focused on the R programming language.