I have no idea when I first picked this book up, but judging from the shape of the spine I strongly suspect I never read it. I certainly have no recollection of any of it's contents.
So, I randomly opened it to pages 86 and 87, where Gary talks about "group size" and using GM assistants or even co-GMing. Interesting stuff.
The he says the appropriate ratio is 3 to 4 players per GM / assistant.
Was this really the case back in the early days of OD&D? I remember stories of a dozen players or more being run by one GM.
Heck, last night I safely juggled 7 in my DCC campaign and figure 8 is my safe max. Most groups I've been a part of have had 5 or 6 players plus the GM.
Was running games with multiple GM's actually feasible back in the day? I haven't heard of any games being run in that manner these days.
Damn, I suspect there are a lot of blog topic seeds inside this small book...