The origin story of Pro Football Focus, the trailblazing sports analytics company that began as one Englishman's obsessive hobby and turned into a game-changing hundred-million dollar enterprise. The book covers the rise from passion project to start-up to success, and includes lots of interesting connecting stories about impactful people in the ever-evolving space of NFL analytics, like mathematician Eric Eager and NFL coaches like Zac Robinson and Bobby Slowik. It's the first book by a Minnesota Vikings beat reporter, and reads like it: It's unpolished and choppy, and the lack of a consistent timeline is a bit confusing. But if you're looking to learn more about modern NFL analytics, or like a good start-up story, it's worth it.