John Elkington is the author or co-author of 12 books, including the No. 1 bestseller, The Green Consumer Guide. first published in the UNITED KINGDOM in 1988, the guide has subsequently been published in over 15 countries. John Elkington has been an environmental consultant since the early 1970s and, as a founder-director of Sustainability in 1987, has advised a wide range of national and international government, NGO and business clients. He is actively involved in environmental auditing, corporate environmental reporting, green investment, sustainable tourism and biotechnology.