The coolest thing...well I haven't learned yet. Everything I've learned so far is pretty cool though. The best is by far the people. Neighbors around me freak out when they find out I have friends all over the world who, unconditionally, give away stuff, free advice, support, criticism (cause they know you need to hear it), and most important the "don't give up...go do it again" when your bow explodes! I've learned to go in the woods and pick up a rock, cut a branch, pick a few shoots, go down to the river edge and gather a few goose feathers and...you all know the rest. Your right, you can learn all this in a book but what this site give is confidence to try. I've learned if other people are doing it then I can try.