Shelton, Jay, (Prometheus, 2004) The subtitle of this book should probably be: "Why it Sometimes Seems to Work." This is a detailed explanation of the tenets of homeopathy and its major variants, and how perceptions mask facts. I do not like the author's writing style, and any general text on "alternative medicine" is likely to have an adequate description of homeopathy for most people. However, Shelton provides abundant references, and obscure information such as how long it takes to make any given dilution.