a SAE is a self address envelop. meaning your not including/providing stamps.

a SASE is a self addressed stamped envelop which is were you are including/providing stamps

depending on the size of the envelop and the weight is how you determine stamps.

for example for me personally when i send within the US: I send a 9×12 envelop that has my letter to the actor, a picture and my SASE using 3 Forever stamps. then i also put 3 stamps on my SASE.

Okay so i dont have a clue what to do when it comes to sending out post, so first off

What is an SAE?
I know its a self addressed envelope but how does it work ? how many stamps do i need to put on it if i want to send a photo?

if i was requesting an autograph on a photo will one stamp do?

Help really confusted !!

Yes i know i sound like a 10 year old but i am really stuck i tried to research it myself but my dad isnt good at it and the internet hasnt told me that much, any help would be really appreciated

Emmah297