These are rules I've picked up along the way to help me remainFrom an old favourite Elmore Leonard essay, a part of the NYT's Writers on Writing series. Subscription required, I'm afraid.
invisible when I'm writing a book, to help me show rather than tell
what's taking place in the story. If you have a facility for language
and imagery and the sound of your voice pleases you, invisibility is
not what you are after, and you can skip the rules. Still, you might
look them over.