John Michael Greer, historian of ideas and one of the most influential authors exploring the future of industrial society, writes the widely cited weekly blog "The Archdruid Report" and has published more than thirty books on ecology, history, and nature spirituality. His involvement in sustainability issues dates back to the early 1980s, when he was active in the Appropriate Technology movement and became certified as a Master Conserver. He is the author of numerous titles, including The Long Descent, The Ecotechnic Future, The Wealth of Nature, and After Progress. He lives in Cumberland, MD, an old mill town in the Appalachians, with his wife Sara.