You can give your Home screen more personality by setting a cover photo.
Note: Your cover photo is the image displayed behind your profile photo.
To change your cover photo:
1. Tap your own name at the top of your friend list, or tap your profile icon or name on Timeline.
2. Tap Edit profile > the cover photo at the top of the screen, or tap and hold your cover photo > tap Select cover photo.
3. Select a photo, trim it, and tap Next.
4. Edit the photo any way you like, then tap Done.