can someone else see my facebook timeline?

[Lenny]

Every person on Facebook has the ability to customize their privacy settings. To edit the privacy settings for your own Facebook account, click in the upper-right corner of any page and select Account Settings. From there, you can:

-Control how you connect with people from the Privacy section
-Control what happens when friends or others tag you or your content, or post on your timeline in the -Timeline and Tagging Section
-Choose your apps and ads preferences from the Apps section
-Block specific people or applications from interacting with you on Facebook from the Blocking section