As you create a model in 3D, you need to view it from all sides. In SketchUp, you orbit, zoom, and pan all the time as you draw:Orbit: When you orbit, you move around, above, or below your model. Orbiting is like flying around your model Peter Pan–style.Zoom: Zoom in to focus on a specific area as you draw, and zoom out to see more of your model.Pan: When you pan, you move left, right, up, or down. 

To create a top-notch document or presentation, you need to not only draw the details precisely, but also keep an eye on the document pages as a whole. To help you out, LayOut has the Zoom Tool () and Pan Tool (). You find these tools on the View menu. Because you'll likely use them often, they're also accessible with your mouse.