Tapestry is a component based framework, maybe the first component based framework for
Java.
It is not a MVC framework (in case you mean it is action based)
I tried a lot in the past to learn Tapestry, I like it but I have no chance.
The only thing I have is the Tapestry 5 book which just a preview for the framework.
I'm really disappointed, Tapestry is a top notch framework but it lacks the resources awfully and I don't think this is going to change any time, it is the story of Tapestry from the beginning.