One of the nice people to take the time to give 'The Sergeant and Professor Skeary Winslow' a little thumbs up is Azzerac who is the author of "Steal This Book of Shadows", my current favorite text on occult practice by far. Azzerac does a fine job stripping out what I feel is needless crap and armwaving and just gets down to it. He also gets that there are multiple ways of comprehending and relating to the occult and addresses this admirably.
Understand that it has nothing to do with comics, whatsoever. Although I could see a character modeled on Azzerac appearing in a 'John Constantine: Hellblazer' story.
If you have any interest in what real live witches and wizards are about, check it out. It is a feature on lodestoneandladysmantle. where you can buy supplies like incenses and oils and such.
Anyway, I like 'em.