I'm not really a fan of learning things from books or videos, but THIS book changed all of that.
Eddie lays everything out in such a way that everything builds on the technique before it. From how to hold the position, to a number of attacks, to a number of counters.
I took the book one technique a week and just worked it each night after practice (it will take me a loooong time to get all the way through the book) but I will have a good understanding of all the techniques involved.
Another thing I like about Eddie's book is how he has his system layed out at the begining of the book so you can look at the position, what the situation is, and what to do next and based on that linear model look at the page number next to it and you have it.
A lot of new things to most grapplers, I'm more than happy with my purchase and have recommended it to many people in the gym.