What is Demonology?
The study of demons, their history and how to invoke them.

Is it something I could learn quickly?
No! Absolutely not! It takes years of study to get everything down pat.

Could I call up a demon right now?
Hell no! invocation at beginner stage is NOT RECOMMENDED. You can easily open a door you cannot close

Are demons real?
It all depends on your point of view.

So I heard that some haunts are demons, care to explain?
There is some thought that demons can haunt a place much like a spirit can. Most demonic possessions of a site are hostile and can be harmful. Most professional ghost hunting teams will include a demonologist

How do I get a demon from my home?
Call upon a Catholic priest to exorcise your home.