Controlling or removing what others post

Controlling or removing what others post 
Only you and your friends can post on your timeline. To turn off your friends’
ability to post, click the little down arrow  on the top right of your screen and
select Privacy Settings. Then click Edit Settings next to How You Connect and
click on Friends next to Who can post on your timeline? to change the setting to
Only Me.
You can hide or delete any posts to your timeline at any point. Hover over the
post till you see a little pencil  to the right and then click on that pencil and
select Delete Post, Hide from Timeline or Report/Mark as Spam. You can also
delete comments on your timeline by clicking on the X  to the right of the
comment.