I'm not a player of this game, nor am I a collector but I would imagine this book holds some value for those who do play the game and collect the cards. Its an easy to read guide, and the author even gives a personal email to answer all your questions if the guide does not. So he apparently is an expert of the game and obviously loves it other wise he wouldn't go out of his way. I would encourage lovers of the game to grab this book. I have bought my kids these cards and seen them strewn all over the house. It kills me now that I have given them away in garage sales over the years. Thanks for the peak!