Why We Get Sick : The New Science of Darwinian Medicine by George C. Williams and Randolph M. Nesse Vintage Books (1996, Trade Paperback) This book is listed with a stock photo but we have described our book below. We will be happy to provide photos of our actual book upon request. Thank you for your understanding. This book is in very good condition with minimal shelf wear. There are a couple of dog eared pages. We will be happy to combine shipping, wherever possible. Some items cannot be combined because of their size, weight or because they are fragile. Please ask if you have any questions. Your order will ship by the next business day after receiving payment. All items are from a smoke-free environment. Thank you, and Happy Reading!