Self-study AP Classes

<p>Hey! My school only had nine AP Classes
Calc
Biolgy
Chemstry
Computer Science
English
Gov
Pschology
U.S. History
Physics</p>

<p>and I am still able to take the AP test if I self-study the courses, and I was wondering which of the other 25 AP Classes are the easiest and worth it to self study, and what are some books that would help. THankyou alot.</p>