Before we break down video editing into its three categories, we'll talk about the reasons why video editing, in the broad sense of the term, is conducted. The most basic goal of video editing is the removal of unwanted video clips. Once the flaws of the video have been removed, the best parts of it are to be determined. When the only remaining clips are what you want to be in your new creation, you try and create a flow to give your film structure and substance. Once this goal is achieved, your next goal is to make it look good with special effects, beautiful transitions, dazzling music and other marvelous imagery. The last goal for video editing is giving your new work a sense of meaning. Why does it exist? Why did you create it? Answer those questions and you have successfully created a new work via video editing.