I first got this from a library when I was (I think) a pre-teen. At least a little bit it charted the course of my future, with a passion for football and statistics, both of which I spend a lot of my current day thinking about. This book directly led to football outsiders, and pff, and all the other ways we have of teasing out cause and effect of the most intricate, cross-dependent sport that exists. Slightly less revolutionary was the actual writing in this book, which comes off as very dad joke-ey and a little too nerdy. Still, changed me, changed the world a little bit.