I like how Preston's book gathers the essentials and presents them in an easy to use format. I've read and clipped out many newspaper and magazine articles on this subject...if I could only find them. This book allows you to jump right to a specific topic and in minutes you are prepared to make wise choices at the grocery or department store. Even better, you may discover that you don't need to leave the house at all - for example, there are instructions on how to make your own cleaning supplies from inexpensive ingredients you may already have in your cabinets. I also appreciate the web links that steer you toward more info on any topic. This keeps the book to a reasonable size, and will make it more likely to be referenced again and again. My friends and family will find this book under the X-mas tree later in December!