Become a member and get unlimited access to the entire skills library of over 4,500 courses, including more Developer and personalized recommendations. Become a member and get unlimited access to the entire skills library of over 4,500 courses, including more Developer and personalized recommendations. Before we can call our map complete, there are some last minute additions that we need to consider making. They can all be found under the Insert menu here in the menu bar. The first one I'll talk about is the Scale bar. Scale bars tell the reader the size of the area being mapped and allows them to make measurements across the page. Scale bars are useful for when you are in control of the output medium. For instance, if this is going to be displayed on the computer screen, you'll have no idea if somebody's on a giant 30 inch monitor or a smaller 17 inch screen. The nice thing about a Scale Bar is that it is a graphical representation of scale. It gets larger as the map gets larger and smaller as the map gets smaller. Let's go ahead and insert a Scale Bar into our map by selecting it from the Insert menu. Here we get a scale bar selector. And there's a whole variety of scale bars that are already designed for us. We go through and pick one out that we like. I'm going to choose this Alternating Scale Ba... This will not affect your course history, your reports, or your certificates of completion for this course. Join today and get unlimited access to the entire library of online learning video courses—and create as many playlists as you like. “In a way, I feel like you are rooting for me. Like you are really invested in my experience, and want me to get as much out of these courses as possible this is the best place to start on your journey to learning new material.”— Nadine H. Source.