I am a fairly new GM, and this book is genuinely flat-out wonderful. It has gotten me out of many a "Oh CRAP!" moment when my players go haring off in a wild direction that I could never have anticipated. I can take care of the important stuff, because I can fill in the details with the Book of Lists. Cuts down immensely on white hair generation and cranial smoke.
[5 of 5 Stars!]