How do I find my gift card PIN number?
WHERE IS THE PIN NUMBER ON THE GIFT CARD
[Re-Titled by Moderator]
Gently scratch off the grey stuff on the back.
The article "What type of gift card do I have?" explains the different kinds of gift cards Apple uses, has links on how to redeem them, and what can be purchased with each kind. Click on the link --> What type of gift card do I have? - Apple Support