The book has a lot of helpful hints about building a target and general throwing technique but if you're anywhere above a beginner it's pretty much just review. It's more like a pamphlet.
These are about the same quality as the nine dollar knives so if you're going low end, I recommend these. They have decent weight and balance to them and they fairly durable-- they're more accessible for younger throwers or beginners.
As the other reviewer said, this is the best deal you'll find for butterfly swords. The weight is good for training. I haven't had trouble with the grip yet but the piece of tape holding it on is pretty obvious.
Pretty decently weighted and good length. You can't beat its durability either. I've had mine for a few years and have done my fair share of incorrect fooling around, but it's still as good as new.
