At a point, the book asks you to create a title and an image to be displayed on the tabBarControllers tabBar. Seemingly, you create these on the specific view controller. So each view controller must have a property of a UILabel to hold a title, and same goes for the uIIMage, right? So the UITabBarController is accessing these properties to display on the tabBar the minute they are added to the ViewControllers array property of the tab bar controller, right?
Sorry if it sounds messy, just making sure i got it.