Non dual traditions
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Non dual traditions
Not-Two Dance Publishings
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Non dual traditions
Not-Two Dance Publishings 
Which manuals? Thanks.
Here’s one reference, Mark:
https://newsunwesternskies.com/2013/07/02/notes-from-an-anthology-of-dzogchen-and-mahamudra-guidance-manuals/
That material referenced above is now part of the overall Dzogchen: Teachings, History, and Practices article page.
The reference above is no longer posted at this site but will be incorporated in the upcoming chapter on Dzogchen! (Chapter 8 of Section One covering “The Traditions”.)