A table organizes information.
A Word table is something you can add to your document to help organize text and other content on a page. It's simply a container that works very much like a closet organizer or that tray in your silverware drawer: it provides separate spaces for your important items so that things are easy to find, visually appealing, and don't feel overcrowded.
In the picture, you see the main parts of a table. You also see how easy it is to grasp information once it's in a table. For instance, if this table contained all employees within a company, you could easily count the number of people.