I am working on this message for the back of my Advanced role-playing guide. I'm not sure I want to go this harsh. I would like to think I can encourage people to wonder, to be shaken out of the stupor of, "wow, another crappy book about how to DM," by realizing that this is the sort of thing WOTC would never put on a product:
This book is not for everyone.
If you have never played a role-playing game before, if you do not know what is meant by RPGs, NPCs, damage, health, stats or AC, then put this book down and move on. It is not for you.
This book is for people who want to read a book about managing role-playing games that makes them feel small, inadequate, ineffective and incompetent. It is only from first understanding that we know nothing that we can learn about the things we love.
This book has been written to show role-players how little they know.