The original manuscript for 'Left in the Dark' was written between 2000 and 2002, with a further edit in 2004. After three years of being unable to find a publisher, it was self-published with minor updates in 2007.
As far as I remember around 250 to 300 copies were printed with several sent out for review.
Left in the Dark 2007
Initial reaction greatly exceeded my expectations and a revised edition was prepared with the intention of reaching a wider audience.
'This is a totally new way of looking at the evolution of the human brain. It is so totally fresh, unexpected and hitherto un-thought-of that it will probably take a long time before evolutionary anthropologists and psychologists begin to take it on board; but it will make an impact, of that there is no doubt. It will be, it must be, taken very seriously in any discussion of human origins.'
Colin Groves - Professor of Biological Anthropology at the School of Archaeology & Anthropology, Australian National University and author of several books including A Theory Of Human And Primate Evolution and Bones, Stones and Molecules
A revised 2nd edition with a foreword by Dr. Dennis McKenna was again self-published with distribution via Amazon in 2008.
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The 3rd edition with minor revisions and an afterword was self-published in 2013 and briefly available as 'Left in the Dark' with translations in Bulgarian and Estonian being published before the rights were acquired by Inner Traditions and published with a new layout under the title 'Return to the Brain of Eden' in 2014.
The Bulgarian edition 2014
Inner Traditions Edition now titled 'Return to the Brain of Eden' 2014
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Signed copies are available via eBay
When writing the original manuscript I arranged what I felt were the key jigsaw pieces that could offer a coherent explanation for our origins and current predicament around split-brain research.
This approach fitted with the headline neurological data and my own experiments.
I have since concluded that re-arranging the key jigsaw pieces around the juvenilising impact our ovary ingesting symbiotic relationship with the angiosperms must have had on our ancestral physiology and neural development makes for a more elegant theory.
There are plans to develop and write a more accessible book with updated evidence under the working title 'Children of the Forest' if resources become available.