Types of Magic

In fantasy books, there are a lot of different types of magic. Some have names, and some are just called magic. In the Harry Potter world, there are a lot of types of magic. There's potion-making, transfiguration, charms, curses, hexes, divination, apparition, and magical creatures/plants. (If I'm missing any, feel free to tell me.) Some other kinds of magic (with names) that I know of are necromancy, scrying, sorcery, summoning, and, of course, alchemy. Then, there are other types of magic without names, just called magic. There are those dealing with elements, the "will and the word", magical items, concentration/imagination, and science. (If I'm missing any, please tell me. I'm sure I am.)

I want to find out how each of them are different, what they do, and how they work. I need as much help as I can get so if you find any information on one, please email me at briantillinger @ cs.com. I'll post on a type of magic whenever I get new information on one, so please help out. (Wikipedia is actually a usable source when it comes to this kind of stuff, because none of this is really fact.)

A few that I'm most interested in learning about are necromancy, which I think is the reanimation of corpses, alchemy, and summoning. However, I want any info on any one of them.

Also, I'll post a list of the types of magic on the sidebar.