Draconic Magick Options

I've recently been involved with a gentleman who used to practice some form or another of Draconic magick in his past, which led him to forming a pact with some form of Draconic entity which co-habits his subconcious; it's quite an interesting arrangement, and he appears to be able to draw from this being's power at whim, or else simply let it control his body in order to perform rituals or spellworking.

In attempting to discern more information about this particular form of magick, I decided I'd ask here; does anyone have any experience with Draconic magick? If so, would you be able to recommend any literature or other sources that I'd be able to investigate? Any anecdotes or info you'd like to share?

I found a thread where 'Dancing with Dragons' was mentioned, which is one I'll add to the list. Is there anything else?

The way i see it, if you believe spirits originate from life forms but then live on then..
logically the oldest spirits are from things like fungus, plants, reptiles, crustations etc..
Obviously not all are powerful, but the age of the dinosaurs has pretty much irrefutably happened an some of them were pretty big/clever.
When the age of the dragon ended their was an intermediate age of the fungus, then an ice age an here we are...

What I'm trying to say is.. imagine such a powerful knowledgeable beast being wiped out entirely! their spirits moved on in much the same way ours sometimes do.
it goes without saying that you shouldn't rely on outside sources for magic (evocation anyone?) but i think people are put off using such amazing spirits because
they fear them, they are not bound by any contract with god, they do not answer to no man, they are a natural force in themselves.

We evolved from reptiles an a large part of our brain is distinctly reptilian in origin, so we have something in common.

The Old Ones of many myths are the givers of the great gifts an curses that which our species stands tall upon.

I can't give any examples, but i know of many who actively use aspects of 'dragonic magic', as to if it's healthy or not i couldn't say,
it factors most likely depends on the attitude of both party's an the nature of the relationship.

If both are willing party's an are of sound mind then who can argue?