Brandon Sanderson (the writer of Mistborn and the final 3 books of Robert Jordan's "The Wheel Of Time" series) gives a lecture on basic geography for world building maps.
He covers some very basic tips and fundamental mistakes that many n00b writers and world builders make when they first start out designing their maps. I will be covering many of these tips in more detail over the coming months as part of the cartography section to The World Building School however these two videos are a great way to quickly improve your maps.
You can watch the lecture below:
World Building Geography Part 1
World Building Geography Part 2
If you'd like to have your map digitally drawn and rendered then you can commission me to draw your map for you. The Worldbuilding Store has examples of the map services I offer. So click here to learn more.