It's fine. The author clearly knows what she's talking about, so if you're interested in worshipping demons, this is the book for you. I'm not interested in that though, and if anything this book makes me confident that Western esotericism/Goetia magic are not for me personally. I found a YouTube channel that made me have a passing interest in Goetia, so I mostly bought this book for the catalog of demons and their functions.