I have a mac book and recently upgraded to lion. Want to give it to my niece, how can I restore it and re-install lion. I never got any CD's from apple when I purchased my mac book.
You can press option but the easiest thing is to press Command-R as you start up. Erase your hard-drive and then erase it. Then when it asks you to set it up just turn it off and leave it for your niece. Hope she enjoys her Mac!