There are many forms of Angelic magic, as far as I am currently aware Enochian magic is the most potent and ancient of the type. The majority of the work is on expansion and betterment of the soul, and how to cause effects in this world through their system.
Demonic magic would usually be summoning demons for a specific purpose, but as with angelic magic it doesn't Have to be so cut and dry. I believe that good and evil are human concepts, and it is both unfair and inapproperiate to fully apply such concepts to beings that are more spiritually evolved then most of humanity.
Angels and Demons both have the capacity to cause us harm, some have such high energy that their very presence disrupts ours and causes discomfort to pain.
I also recommend leaving both angel and demon alone until you have a fair bit of knowledge of magic, it can be quite draining and demanding work to better the soul and the knowledge and benifits either side provides are not easily taken in by a person whom has little grasp of magic.