Carol Ann Rinzler is the author of more than twenty books on health and medicine, including Nutrition For Dummies, an international bestseller translated into fourteen languages that led to a stint as nutrition columnist for the New York Daily News. Rinzler's award-winning Estrogen and Breast Cancer: A warning for women (1993, 1995) was among the first to document the link between hormone therapy and an increased risk of breast tumors. Her four books in the Dummies series (Nutrition plus Controlling Cholesterol,Weight Loss, and Heartburn and Reflux) make complex medical facts and figures accessible to the general reader. As for her own reading, she says that "as a writer who specializes in medical subjects, my absolutely favorite books are my almost-complete sets of the Merck Manual and the Merck Index. This wonderful collection is an extraordinary record of the history of illness and orthodox treatment in the United States that makes it possible to track the evolving diagnosis, description and treatment of a disease or condition over more than a century. For example, in one chapter of my new book, Leonardo's Foot, I was able to use the Manuals to show the changes in how people regarded and treated flatfoot, a seemingly non-controversial deformity once used to identify those believed to be Devil's disciples. I am still searching for the second edition of the Manual, published in 1901. Alas, each new volume in the series was so widely available that doctors simply tossed out the old one when the latest one appeared."