Relationship and difference between N3 and RDF*

I'm a beginner in semantic technology, and I'm learning about RDF*.
I notice that another W3C specification is also being drafted : https://w3c.github.io/N3/spec/ . Also it mentioned: “N3 adds an If-Then style of decision making in the form of logical implications and variables”.
But I feel like it's not quite up to speed with RDF*, because there are a lot of sections that still say "bla...".
I don't know how it is related to or different from RDF*, there is also the W3C's TRIG, would some expert explain this briefly?   Thanks.

Regards,
Joylix