Best Ron Paul book for new Ron Paulblicans?

I'm 17 years old and a strong Ron Paul supporter I don't know a whole lot but I've been into politics for over a year to know enough. I want to become more educated and want to learn more about Ron Paul and his views What would be a perfect book that will help me when debating and defending Ron Paul and his views with people how often times own me cause I'm don't know a whole lot. I'm looking into buying both liberty defined and end the fed first. Or should I choose another book that will explain things more thuroughly?