It's called "Saving Speedway" by well known author and speedway historian Philip Dalling. It covers the SAL and Prov. League-say 1954-64. Even though I am interested in this part of history particularly the Prov. league, I learned quite a bit , also the illustrations are excellent -many speedway photographs new to me. Comments by many promoters/ riders of that period are most interesting. I got it for xmas,and have hardly put it down. Highly recommnded to all.