AP Human Geography Exam

This past May I took the AP Human Geography Exam. My teacher quit in the first few weeks of class and so we had a sub for the rest of the year. Our sub was great as a person but not at all qualified-in my opinion at least-to teach an AP class. So basically I had to self-learn the entire subject. The two books I used to study were REA and Barrons. With these two and nothing else, in one semester I took the AP Exam and got a 5 on it. Hope these books can help someone else, similar dilemma or not!