Layouts are an integral part of ArcMap. In order to see layout view, click the Layout view icon below the lower left of the map display. If you need to make a series of maps that have the same overall design, you can save the map as a template. Why use a template when you could simply open an existing map document and Save as to another map document? There is a possibility if you open an existing map document and make changes that you could inadvertently overwrite the original copy. In addition, you can store map templates in the general template location, which is more convenient than searching for a map document that may be several branches deep in the file system. You will not actually be printing the layout, but this step will create a PDF file that you could print later if you wish. Source.