Jeanne Boyarsky

This book has some basic knowledge you need for the exam, and it comes with 3 practice tests online, with a total of 180 questions. The tests come with a detailed explanation for the correct answers and are really useful. Don't get discouraged if you don't get a very high score in the practice tests. They are intentionally harder than the real one.

After using this guide, I had no problem passing the exam with a good margin above the passing score.