Hi, I'm new to the cartographers guild and had a question. I was wondering what image dimensions or ratio of length to width would be the most appropriate when planning to create a world map? I'm Game Master for an upcoming pathfinder campaign me and my friends have started (never GM'd before....) and would like to create a world map for my campaign world but i'm not even sure how to begin, like what image dimensions would i even use for a map.

I've used gimp fairly extensively in the past so that's my program of choice, although mostly for simple things like parallax mapping in RPG maker.

I plan on browsing the tutorials when I have additional time, also any other tips would be greatly appreciated.

I apologize if my question is silly or confusing in some way, but i am by no means an artist OR cartographer. After being directed to this site though, I might be looking to change that....