I have not yet been able to read through the whole book. It contains such an amount of information that it is not an easy reading. However, when I need to find out some solution, I usually find it. And it's not only a recipe, you will get an understanding of how the system operates, which is the structure, the reasoning behind it. So, it's not just a "do this" book, but a "if you do this, this will happen, because of that" piece.