What is the author's style in Mama Lola: A Vodou Priestess in Brooklyn by Karen McCarthy Brown?

This work is constructed of 12 chapters in varying lengths. The book is 429 pages long including foreword, afterword, glossary, bibliography and index. The author approaches this book from two different directions: fictionally and anthropologically. Every other chapter is a short narrative fictionalized biography of Mama Lola's family which details her lineage back to the story of her great grandfather.