A Qlik Sense application contains several components, most notably a single data model (see the Data model section for more information) and a collection of one or more sheets. Think of an application as a container for data and visualizations; it holds both the data and the visualizations to which we attach the data:

The preceding screenshot shows the application overview, which is the screen that shows us what the application contains, that is, Sheets, Bookmarks, and Stories. This view also allows us to edit the settings of the application, such as the name, description, or thumbnail image, as well as create new sheets and stories. Bookmarks and stories will be covered in a later chapter.