There are many books and websites out there that claim to 'cure' cancer, that the medical profession is involved in a giant conspiracy theory to keep the drugs companies in business.
David Servan-Schrieber takes a thorough, no-nonsense approach to cancer and how it develops. As both a doctor and a cancer survivor, he looks at case studies along with his own and outlines a number of mechanisms which, whilst not proven through clinical trials, have had enough positives effects on a substantial number of sufferers to have a significance. A combination of diet (not proscriptive), good mental attitudes and exercise - have in very many cases enabled patients with advanced stages of cancer to live beyond doctors' expectations with a good quality of life. Much is common sense, but it is easy to read and offers a number of easy alterations to your life, which may help prevent the onset of cancer, or further development of existing disease. Highly recommended.