This was a late medieval book printed not long after the Gutenberg process became available. It is a treatise on how to discover, question by torture, and execute witches.
It is thought that several thousand were printed over the years (maybe second only to the bible in distribution in its day) - and that this was in large part responsible for the witch hunts in Europe. The final example here in the Americas - the Salem witch trials.
It made me think about the JW propensity (and secret love of) all things "demonic". A second similarity was that this book took a rather perverse and restrictive rulemaking position on human sexuality...sound familiar, ex JWs? Another similarity was that the fear of witchcraft was almost exclusively directed toward women - especially on women who were smart or outspoken...sound familiar, ex JWs?
It also made me wonder if the JW theology could ever give up the "mystic demonism" aspects of the religion - the possibility that old books or furniture could contain demons...that demons visit "weak sisters" for sex episodes in the night...that even kids toys can have demonic influence. I think they are as addicted to this kind of dark ages mysticism as they are to the name of their God, the time of the end prophecy, or anything else.
I think the JW religion is addicted to this superstition - in a modern age where even the Catholic Church has pretty much rid itself of such things.