You meet the mistaken idea that "the ultimate is unconditioned therefore anyone who teaches a path to realize it has fallen into a false view" more often in Neo-Advaita. But some would-be Dzogchenpas seem prone to it as well. I won't argue the point. But I will recommend Vivid Awareness
, a recent book by Thrangu Rinpoche made from talks he gave explaining a short text by Khenpo Gangshar. I haven't finished it yet, but so far, so good. It hits the main points that a beginner in Dzogchen/Mahamudra needs to know.
Imagine a man who stands before a mirror; a stone strikes it, and it falls to ruin all in an instant. And the man learns that he is himself, and not the mirrored man he had believed himself to be.
-- Gene Wolfe