This is a really awesome book; Dr Gerson was a brilliant thinker, and a doctor who truly cared about his patients. A Cancer Therapy is the first book written and published about Gerson Therapy -- that is, the practices of using diet (Juicing, animal product-free, healing vegetable food choices) to eliminate some of the worst diseases on the planet; cancer, tuberculosis, diabetes, and many others, along with removing toxins from the body (MSG, all salts aside from potassium salts naturally in vegetables, sugars, fluoride, mercury, among others).
The only reason that I give A Cancer Therapy only 4 stars is that is extremely technical. It was initially written to be published as a scientific journal, and Dr Gerson uses technical and medical terms throughout his book. The information is phenomenal, but for easier readability I recommend his daughter Charlotte Gerson's book, "Healing the Gerson Way: Defeating Cancer and Other Chronic Diseases," written with Beata Bishop.