Previewing a text means to get an idea of what we are going to find in a
particular text or in other words it is a skill of learning about a text before
reading it. It saves time, gets a sense of what the text is about and gives us a
kind of overview. This simple skill includes seeing what we can learn from the
head notes or other introductory material, skimming to get an idea of the
content and taking a look at how the text is organized. It saves a lot of time for
us as after previewing a text, we can set a purpose or evaluate whether the
text meets our purpose or not.