Gymnastic tumbling & Coach's books

This question has bothered me for some time now.

The thing which i would really like to know is if Coach had included any training material about tumbling? You know stuff like backflips, frontflips, bhsp, fhsp, aerials ( wallflips maybe ?).

Anyone knows something about that ?

I'll wait for Coach to answer this, I was under the impression that it was mostly strength related stuff, more than a course book on gymnastics, but I may be wrong.