Nikos Anastasopoulos, PhD is a researcher architect and academic, lecturer at NTUA, Athens. Areas of research and action include the commons, degrowth, sustainability, systems and complexity theory, and alternative communities and eco-communities in Europe, the US, Israel and NZ. He is co-founder of the not-for-profit organization, TREE and the Koino-Athina, member of the P2P Foundation. Has served as President of the Marathon National Park in Greece, and is involved in activist movements on the commons worldwide, a topic for which he has lectured and written widely. As a Prometeo Researcher, (IAEN, Quito, Ecuador, 3-12/2014) he contributed with policy papers for the FLOK Society project and he conducted research on sustainability, Buen Vivir and the management of the commons, and their impact on urban environments.