Hello Ovedya,
The Faith series is just that, a series of 10 parts. If you actually spend some time meditating upon the different parts and studying them out you can see that they ARE different even though they are speaking about the doctrine of Faith.
I suggest that you ASK of God to also give you an understanding before you go over them, because without Jesus openeing up our understanding of the scriptures, we cannot understand. (Lk 24:45).
Blessings in His truth,
Ztheberean