It tells you all about how motocross started. Also what everything is on the bike and what there called. It shows pictures of the bikes and people in races. The three main bike classes is 125s,250s, and 500s cc. There is freestyle and alot of other stuff. The bikes weigh alot. Its on of the most dangerous sports. So you have to be carefull but even when you are being carefull you can still get really hurt.
The only reason I am reading this is because that I myself am getting started on motocross and it gives you a few tips and tricks. I enjoyed this book a lot.