I have a piece in the new issue of Publishers Weekly called Preliminaries, inspired by Elmore Leonard's 10 Rules of Writing(if you haven't read them, you should).
One of Leonard's rules states: “Avoid prologues. They can be annoying, especially a prologue following an introduction that comes after a foreword.” Jumping off from there, I try to explain how to tell an introduction from a foreword from a prologue from a preface, and get hopelessly muddled in the attempt.
Another of Leonard's rules states: "Never use the words 'suddenly' or 'all hell broke loose.'" I managed to adhere to this rule.
A third states: "Try to leave out the part that readers tend to skip." Not so sure about that one...