Promethea is a 32 issue comic book series by Alan Moore and JH Williams III. It constitutes the most thorough explanation of Alan Moore's religio-philosophical beliefs to date. These views largely amount to a contemporary version of occultism. Although most readers of RationalWiki are likely now mentally consigning the series to the crank file, the series is surprisingly cogent and sane for a lengthy piece of occultist philosophy by a man who worships a fictional snake god.
Moore's views on magic and occultism largely treat both not as scientific systems that make empirical claims about the world, but as artistic and aesthetic philosophies. Moore argues that magic and art are ultimately synonymous, and then goes on to basically sound like a perfectly normal transhumanist or singularity aficionado, albeit one who talks about Aleister Crowley more than is entirely healthy. All in all, the series is worth reading if you're prone to getting into arguments with occult/magic sorts, as it provides an enormous number of ways to screw with their heads.
Seriously, this is top-class Alan Moore, and it's even culturally educational.