"Iodine: Why You Need It, Why You Can't Live Without It" by David Brownstein is a 3rd edition textbook published in 2008. The book, written in English, focuses on the medical subject area of endocrinology and metabolism. It discusses the importance of iodine in the human body and the crucial role it plays in maintaining optimal health. The content is presented in paperback format and is a valuable resource for those interested in learning more about the role of iodine in the body.