Chapter 1 introduced SAS, the most widely used tool in the world of analytics. SAS is a software suite that can retrieve data from a variety of data sources. It can help you clean the data and perform statistical operations on it. For nontechnical users, it also provides a graphical user interface (GUI) to perform various analytics operations. The soul of SAS is its programming language, which is used by most analysts. It provides more advanced data handling and analytical capabilities than the GUI. The SAS programming language, also known as the SAS scripting language, is much easier to learn than most other programming languages such as FORTRAN, C, and Java.