What makes a good letter?

^ by Eqcomics (via Good Mail Day)

An important question I meant to include in the survey post last week was - What makes a good letter? Do you have any answers for this question? A list of necessary ingredients? What makes a bad letter? I find the "what makes a good letter?" question a hard one. When you read one you know, but it's hard to put your finger on just what makes it so good. I would say honesty and humour are always good ingredients.

Today I made about five pages for the slowly evolving mail themed zine I'm making. I will definitely update on it's progress.