User blog comment:Jessie1010/Character Galleries, Guideline Revisions, etc./@comment-6399832-20130430114707/@comment-4717855-20130501005507

I'm just going to go out on a limb and assume that you meant "Edit summary". If not, my bad.

But an edit summary is a way to let other users know exactly how you edited the page.

For example, if you added pictures to a gallery, you could say, "Added pictures to gallery."

Do you get it?