I'm having to be ruthless with my book choices at present because there are too many tempting sales!
I have this book on pre-pub which is releasing in a couple of weeks.
https://www.logos.com/product/168930/powers-of-darkness-principalities-and-powers-in-pauls-letters
I notice it was published 28 years ago. I see it referred to regularly which is why I ordered it.
My question is, has the study in this area developed significantly in the last 28 such that there is a better book by an author with a similar pedigree that maybe I'd be better spending my money on?