Book Series Unity-Through-Diversity Two Stefan Blachfellner 18 years ago BCSSS Book Series The BCSSS launched the book series “Unity-Through-Diversity Two”. Please feel invited to contribute to the series. For details contact Wolfgang Hofkirchner. Related posts General System Theory and cybernetics – convergences and divergences by Stefan Blachfellner 11 years ago May 30th 2017. Book Launch! Social Morphogenesis: Five Years of Inquiring Into Social Change by Stefan Blachfellner 9 years ago BCSSS Board member Ray Ison publishes new book on the hidden power of systems thinking by Stefan Blachfellner 7 years ago