I recommend reading a book like Kraig's "Modern Magick"
You should never learn online. There is far more to it than just reciting a spell and it can be dangerous if done improperly, even if an "angel". Even then it still holds risk. I know someone who is currently getting their life flipped upside down because they evoked one, and he is experienced!
i am a vampire and Yes we do exist and we feed too. I can say not all vampires are good because some vampires can kill because of the urge of blood but with time they can control this. We feed off blood from donors and before we do that we test for HIV/STDS. We are able to do cool stuff if we concentrate on the environments around us but not everything you see in the movies.
I am born vampire and my mum is too, she helped me grow. And yes, i yes a normal human can be a vampire too which must vampires do not know of or do not want to tell You about. If you want more research on us contact me on my mail firstname.lastname@example.org i would not like to reveal all about us here because the society seem to have different ideas about us.
Lisa99, why are you posting this unrelated and almost certainly a role playing comment on an unrelated forum, this is not helpful for the person who posted the forum or to anyone else.
Otonashi, I suggest you do some serious research about protection, banishing and summoning rituals before you even think about doing any summoning, without the right knowledge it can go very very wrong.