You see the home screen when you turn on and unlock your phone or touch 
Swipe right or left to move between home screens.

Navigation:



You can add more home screens to the right. To add a page, drag an app shortcut to the edge of the current page and place it on the new screen.
To remove a home screen, drag all apps and folders off the screen. After you remove the last item, the home screen will be removed.
Organize it:
Change how it looks: