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.

As a new GM running my first campaign, these cards are incredibly helpful. They are clear, easy to use, and definitely worth more than the tiny price! I can pull the cards that I am planning to use for the session and have them at-hand, so the players don't get the helpful clue of me paging through the bestiary and start warming up for an attack.