[1] Much of his work, particularly his regular 'Big Bad World' feature for New Internationalist, is political.
[3] A German edition with extensively modified artwork, Sprachlos: Eine Weltgeschichte ohne Worte, was published in 2014.
The book also outlined the extent of the modern day co-operative movement, and explored the presence of co-operation within evolved natural systems.
[6] Working with Australian born fine artist Eva Schlunke, he co-created the ecology themed children's book Little Worm's Big Question, which was published by New Internationalist on 7 January 2016.
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