There is a lot of good in this document, and I particularly applaud the succinct chapter XII (Too Long;Didn't Read) and recommend it to those who are starting out on the road to becoming a great GM. The preceding eleven chapters are also well-written, though experienced GMs (myself included) will undoubtedly find passages that they don't agree with. Even new GMs are probably passing fair players already and will take exception to certain parts or inferences. Good! One size does not fit all. But this volume would feel less preachy if there was a disclaimer of opinion in the author's notes or the opening chapter.