Paul Stamets has a new book out called Psilocybin Mushrooms in Their Natural Habitats.
Sometimes referred to as the Einstein of the mushroom world, the new book has been garnering some high praise.
Note this encomium from Andrew Weil MD - he of the mushroom beauty product line: "Visually stunning and nourishing to your mind, Psilocybin Mushrooms in Their Natural Habitats is essential reading for all those interested in psilocybin mushrooms, from mycologists to therapists to physicians. I highly recommend this epic book!"