Fritz is very chatty and funny. The structure of the book is about what you would expect. It starts with some discussion of schadenfreude and the history of lotteries, moves through the majority of the book which is lists of people who won and then what happened next, then ends with a discussion of What Can We Learn From This/What Should You Do If You Win. His advice is almost exactly what you would expect (take the payments, not the lump sum; do not be hasty; be careful about hiring advisors; do not continue to buy on credit; scale your plans to the size of your winnings, etc.)
I've been reading stories about lottery winners for my whole life. As a kid, the discussions were pretty simple: what would you do if you had a million dollars. When I got older, life got a lot more complex, and while I never played the lottery (any lottery), I had a related experience and it quit being so pie-in-the-sky and started to be more of an oh shit how do I not become one of Those People. I continue to read, with interest, stories about people who -- either through entrepreneurial activities or winning a lottery -- experience a change in resources that is very life changing.
This book is honestly one of the better ones out there. He's very pragmatic, in a really relatable and accessible way. It's not spectacularly well written, and what he is saying is not that complicated, but a lot of other people who write about financial transitions of this sort do so much _less good_ of a job, that this book really stands out. Also, very funny.