iMovie is a simple yet powerful video editor that enables you to develop your video project with three main tool areas (see Figure 24.1): the Monitor, tool pane, and Timeline/Clip Viewer. The Monitor is where you preview a video clip or your entire movie. The tool pane changes to reveal options related to Clips, Photos, Audio, Titles, Transitions, Effects, or iDVD. The Clips pane, which is the default option for the tool pane, enables you to look at all the clips you have to work with at a glance. The Timeline/Clip Viewer is a special area at the bottom of the screen where you can put together your clips and make decisions about when you want them to start and end.