Recommended Reading 

The Triple Bottom Line
      Andrew W. Savitz with Karl Weber

Green to Gold 
      Daniel C. Esty and Andrew S. Winston

Ecology of Commerce
      Paul Hawken

Green Marketing 
      Jacquelyn A. Ottman

Cradle to Cradle
      William McDonough

Natural Capitalism
      Paul Hawken, Amory Lovins, L. Hunter Lovins 

Blessed Unrest 
      Paul Hawken 

Hot, Flat, and Crowded
       Thomas L. Friedman

The World Is Flat
       Thomas L. Friedman

The Power of Unreasonable People
       John Elkington & Pamela Hartigan