I need book suggestions if there are any. My young nefew is asking me about building ( doing ) jumps. I have to be careful not to offend the parents. But if there was some light manual on building DJs that would be a cool Xmas gift and get me off the hook. I almost suggested wood and power tools but that would only huant me if he unsupervised injured. I'm to far away to help myself.
I don't know of a book. I have found some great websites that go into great detail on building jumps. There's a new video out called "Higher Learning". Cowan from Kona goes into how to build jumps (probably dirt) and how to jump safely and effectively.