I'm begging for a book on introducing voodoo! Little sister thanks ~~~

I'm begging for books on gu techniques from various periods. I don't want novels, I want books! It didn't matter if it was an ancient text or a period of time, as long as it was an introduction to gu techniques! Little sister thanks again! O(∩_∩)O~ I'm begging you... However, I want to emphasize that I'm asking about the book, not for you to introduce me to voodoo. If you don't know, please don't give me a random answer to deal with me, okay? Thank you for your cooperation! I, I'm sweating… First of all, I'm deeply sorry for the misunderstanding caused by the seniors. However, the seniors have indeed misunderstood… Let's put it this way. I'm a nameless writer. Another part of my novel is about voodoo, and I don't want to make it up. I hope that my novel will have enough value, so I want to study voodoo first. Uh, not study, but understand it in detail. This way, the things I write won't be too superficial. Actually, this is how I write. To write about an unknown person in history, one had to study the customs, etiquette, people, culture, history, politics, and so on. So, it's not strange that I want to read those books, right? I'm very sorry for causing such a big misunderstanding... But, I really didn't do it for revenge or anything like that…