Gary Snyder, the great poet, essayist, deep ecologist, and Zen Buddhist has a new book: Back On the the Fire, published recently by Shoemaker & Hoard. It is yet another shining example of his years of amazing work (now 19 books altogether). Snyder is surely one of my mentors/teachers, although I have never come close to meeting him.
If you're curious about Snyder and have never read any of his work, see some background at these sites: here, here, and here.
Yet another mentor/teacher of mine (and another one I've never met), is the author Matthew Fox. Without these teachers, I can't imagine how I'd have a unified view of the past, the present, or the future.
More on Matt Fox can be found here, here, and here.