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Biograph Under the auspices of the Complementary Set, Allenna Leonard consults, facilitates and teaches people in organisations to address their circumstances using concepts from cybernetics and systems thinking. She is based in Toronto and travels internationally. Allenna specialises in the approaches developed by her late partner Stafford Beer, especially his Viable Systems Model and Team Syntegrity process. Her Ph.D. was earned in Administration from the University of Maryland. She is a Past President of the American Society for Cybernetics and is President Elect of the International Society for Systems Sciences. She would like to see the potential of this field fully utilized to improve the state of social systems around the world. Allenna is currently president of the International Society for Systems Sciences. email - allenna(at)allennaleonard.com phone/fax - 001 416 535 0396 front page