sentences:  Her book’s a best-seller, her Twitter account and Huffington Post blog posts are active and educational, Vanity Fair writer John Helipern committed to going veg after just one lunch with her, and she appeared not only on The Oprah Winfrey Show, but helped a family adopt a vegan diet on Ellen, chatted veganism on The Martha Stewart Show with fellow activists Biz Stone and Gene Baur, and talked shop on Charlie Rose.