I wasn't going to write a review of this book initially, but I wanted to respond to some of the other reviews here.
Ms. Palmer has the difficult job of being a white woman writing about an issue concerning gender and culture in an African country. Just because she's white and wants to help people, doesn't mean she has a white girl savior complex. The book is investigative and does not suggest that white people need to come in and save these people; if anything, the book emphasizes heavily that these people need to save themselves by embracing education, modern medicine, and modern economics while understandably facing major challenges that come with the region they live in.
Exoticism. Based on what Palmer writes in the book (and I have not sought out other researchers' perspectives on this) it seems like she spent more time in the witch camps than other researchers. She mentions a couple times that other researchers and interested parties would only spend a day or two due to the costs associated with visiting the camps. I would say these other people are more touristy, seeking a brief, exotic experience in Africa.
Sensationalism. Nobody is flocking to read a 200+ page book about rural Ghana (as unfortunate as that is). Nonfiction is nowhere near as trendy as fiction. While the topic is quite interesting to me, most people I mentioned this book too have subtly expressed that they want me to shut up about it. Sensationalist books I've seen related to witchcraft are ones lacking a list of references or any primary source material (and likely any research whatsoever), and are along the lines of "how to do your own spells and potions at home".
I find most interesting the critic who mentioned that they lived in northern Ghana, and that they were aware of many differences in what Palmer describes as her experience in the book. I wish this critic explained what those differences are. I've been to Takoradi, Tema, and Accra, but nowhere in northern Ghana, so another perspective on the area would be great to have. Additionally, I've been to the fetish market in Lome, Togo briefly mentioned in the book; this market is what started me on this journey of studying nonfiction witches. I found Palmer's description of the Lome fetish market to be spot-on, and chuckled to myself when she states that she bought the travel talisman because a couple of my coworkers bought those talismans as well (for what I feel is a silly price for a stick and some string).
I do not share all of Palmer's opinions on the topic of the witch camps. However, I greatly appreciate the effort she put into researching and presenting this topic. Her book has given me a solid starting point in my studies of west African witchcraft, and allowed me to form some of my own opinions on the topic.
Edit: I forgot to mention that I also love the title, and I think it is very clever. "Spellbound" ties in with the theme of bondage, with elderly, childless women being held captive by the witchcraft culture. Additionally, "spellbound" plays on the theme of fatalism being an obstacle of modernization in northern Ghana, as in spell-bound: the region is destined to believe in witchcraft and that belief will influence the future development of their societies.