Recently I saw
a post here asking for a short script about 15 to 20 pages .
Is it like any normal short script or does it differ?
Do you mean a script that is to be purchased, or a script created for an advertisement/commercial?
Thanks a lot for the clarification .It means they will show people your screenplay along with an advertisement. I don't know exactly what that means, maybe each page has an ad at the top, or maybe they click a link to view it and see a commercial first, but it has noting to do with what they are seeking.