This guy has tons of free PDF's and PowerPoints on growing and caring for mushrooms. He also has stuff on mushroom hunting (mushroom foraging), etc. He has workshops too, on growing and finding mushrooms.
Coral Tooth mushrooms (Hericium coralloides) - Edible, native and delicious! - Will Borowski’s been growing these beauties in his home mushroom cultivation setup on blocks of grain spawn | Mushroom Cultivation | Author: Kirsten Bradley