Bob Greene has just released his 10th book, "20 Years Younger" and he wants you to buy it. Why would anyone buy his book when his most famous client is a diet disaster? Oprah Winfrey is obviously not reading his books, so why should you? There's also the fact that he LIVES on Oprah Winfrey's $50 million Montecito estate with his wife Urania and daughter Kylee. He can't find his own house? And what excuse does Oprah have of not exercising when her trainer lives with her?