You have a cool idea and you want to write it up, so you sit down and start typing. No! Before you ever start writing there's so much you have to think about first. Not only what your plot is, but what your theme is as well. What is your story about? Who are the characters? How do they relate to each other? And so much more. Eisner Hall of Fame winner Marv Wolfman has put together a talk dealing with just that. If you want to write, don't write. Come here first.