What do I need in a postcard?!?

Question:(eg.) my name, address...what else?? please help me.
and where can I print a postcard of my school..(project)

Best Answer - Chosen by Asker: (eg.) my name, address...what else?? please help me.
and where can I print a postcard of my school..(project)

You need to create and print a postcard? If you need it to be mailable, you can check out the requirements at the Post Office website: http://pe.usps.com/search/jsp/search/vv_...
Generally, you'll have one side with your image and the other divided in half--the left side is a message and the right side bears your name, address, and a postage area. To get the postcard rate, the card should be 4x6, but most postcards are actually larger (you just pay a little more).
You need to print the card out on cardstock or something thick enough to go through the machines. You can either buy cardstock for your printer or you can take it somewhere like Kinko's or Office Depot to print it on a sheet of cardstock for you.

I hope this helps.