AFAIK, there will be no study books for these exams. The Hentzenwerke books are a good start.

The best thing to do is to take the beta exam for half-price. They will give you a coupon for a free exam. If you pass the beta, it will count as a real one. If you fail it, you will see all questions that can be asked in the real one and you can study for it.

>I know about the exams, I am looking for study tools for them.