In 'A Supernatural War,' Davies explores the roles of religion, spiritualism, the Occult, and superstition in the First World War. This is an interesting and largely undiscussed niche in a topic (WWI) that has been the subject of thousands of other books; for that reason alone, I find this book valuable. Davies focuses primarily on the Western Front and gives only brief mention to the beliefs and practices of Jews, Muslims, Hindus, and unconverted African soldiers, so this won't be a very helpful book for people interested in the expression of those or other non-Christian religions and/or non-Western spiritual traditions. Where I think this book excels is in exposing the role that the war played in mainstreaming the Occult in European and American culture often at the expense of fundamental Christianity as well as the commercialization of spirituality through the creation and sale of art, amulets, charms, etc. as well as the expansion of the psychic/medium/fortune-telling profession.