A world-renowned expert on environmental design, William McDonough published a book titled Cradle to Cradle, which lays out in detail the tenets of closed-loop production, in the context of preserving the environment. It's interesting to note that the book is printed on synthetic paper made with inorganic resins. It can be recycled the same way a yogurt container is. You can order the book directly from Amazon.com or Booksense.