Christa Müller (Germany) is a sociologist and author. For many years she has been committed to research on rural and urban subsistence. She is executive partner of the joint foundation “anstiftung & ertomis” in Munich. Her most recent book (in German) is Urban Gardening: About the Return of Gardens into the City. She blogs at http://urban-gardening.eu.
Or go to Central Books & type in "Wealth of the Commons"