Why should you learn about Linux? It’s a fast-growing operating system, and it is inexpensive and ﬂexible. Linux is also a major player in the small and mid-sized server ﬁeld, and it’s an increasingly viable platform for workstation and desktop use as well. By understanding Linux, you’ll increase your standing in the job market. Even if you already know Windows or Mac OS and your employer uses these systems exclusively, understanding Linux will give you an edge when you’re looking for a new job or you’re looking for a promotion. For instance, this knowledge will help you make an informed decision about if and when you should deploy Linux.