Warren Ellis has advice for writers who are trying to figure out how to write comics scripts. I've written a few of these, and I've been looking for a guide like this. I especially like his advice on understanding how to give direction to artists:
When you're starting out, you may well find yourself writing "blind": not knowing who the artist will be. This is why people like Alan Moore evolved that hyper-descriptive style — so he could get the end result he was looking for regardless of who was drawing it. You may prefer to do that. I would prefer that you took some art classes, and talk to some illustrators (this may involve sign language and grunting sounds). Investigate art, even if your drawing hand, like mine, behaves more like a flipper. Understanding what is joyful about illustration is important. It's important to create a thing that will delight an artist. (And even a letterer, although that's going to be harder as many of them have the demeanour of a demented gravedigger.)
You are, in many ways, writing a love letter intended to woo the artist into giving their best possible work to the job. A bored or unengaged artist will show up on the page like a fibrous stool in the toilet bowl, and that's not their fault — it's yours.
