Basically the same idea as working with any other being in magic; spirit guides would probably be the closest approximation.
Basically this is anything that involves dragons either through imagery or invocation/evocation. It can be meditating to find a dragon willing to work with you, participating in rituals/spells that call on the power of dragons or a specific dragon, attempting to summon or call up a dragon, etc.
Dragon Magick yush my fav topic n..n
Dragon magick is magick with dragons but you first have to be iniatiated.. (i think lol)
i study it but still dont understand certain things, they left us for the astral realm (cant remember why) dragon magick is pretty complex