XProc confuses me; recommendations for learning?

I've googled and read blogs and checked out online books-in-progress, 
all for naught: I haven't grokked XProc very much at all yet.  I suspect 
there is a key understanding that eludes me, and that once I clue in, 
everything will crystallize.

In the meantime, could kind folks on this list point to the best 
resources for understanding and using XProc?

Thanks in advance!

Received on Thursday, 16 December 2010 19:57:02 UTC