Hello Sarah,
I personally find that read the entire PMBOK twice will be the most chalenging part of my studies. Hopefully I will not need a lot of time to read everything.
I have decided to use Rita's PrepBook as well, I have read some good reviews about it. A friend of mine have also used it and recommended.
I have planned my studies as the following so far:
1. Watch the complete PrepCast alone.
2. Read Rita's PrepBook followed by the related content again in the PrepCast.
3. Read the complete PMBOK
![:unsure: :unsure:](/media/kunena/emoticons/unsure.png)
4. Answer questions related to the previously studied content. Once all content is covered, start with the 200 questions exam simulation.
5. Review the contents I need to improve and try new questions until I can answer 80% of NEW questions correctly several times.
My only concern with this approach is the time needed to read the PMBOK and if it will somehow negatively affect what I have already studied.