It's simple, really.

The covers will be put up, and you can vote for the cover you think suited the best for the topic.

You can vote thrice.

I will mention how to vote when I put up the covers.

The guest judge and I will judge the covers within a week's time based on if the cover fits the criteria, and the Winners will be put up (prize is bragging rights, no stickers).

That's all, I guess. If there's anything else to clarify, comment below.