In this chapter, we will first define Grunt and cover some of the reasons why we would want to use it. Then, instead of starting at the beginning, we'll temporarily jump ahead to review some real-world use cases. Each example will contain a brief summary, but it won't be covered in detail, as the purpose is to provide a glimpse of what is to come. These examples will also provide us with a general understanding of what to expect from Grunt and hopefully, with this sneak peak, an idea of how Grunt's power and simplicity could be applied to our own projects.