XSL Beginner Resources [was XSL equivalent of SQL havi

On Wed, 22 Sep 2004 14:07:30 -0400, Francesco Barresi wrote
> Yes, you can nest the [], like you writed before:
> /one/two[child::three[@atribute='value']]
> 
> You can also do it in other ways, for example:
> 
> //three[parent::two and @attribute='value']
> 
> yes I know, this example is pretty stupid, but was only to show that
> in Xpath you can match the same thing with dirrente expressions.

Thanks very much; I appreciate the examples.  

I am curious where people learn these things.  I feel like I am missing some 
parts of the big XSL picture.  In other programming languages I generally 
just read the API documentation, but think language (declarative?) is 
completely unfamiliar to me.  

What are some good web resources to start with?  I know of w3c, w3schools 
and msdn, which can be pretty good for low-level stuff, but is there some 
kind of cheat-sheet for the high-level things?  I don't have time for a 
thick book.

Thanks,

   -John