Answer:
Not as read in any fictional books. The spells and magic found there are just fantasy.
Great fun, but only that, fun.
The practice of witchcraft (or wizardry) in the real world can be, but is not always, connected to one or more of the spiritual paths known collectively as Pagan. Studying paganism is the life long work of many practitioners, but most are done as a personal search/study, from books by reputable and knowledgeable authors, or with a mentor/teacher and not in a "school" setting.