<p>I’m preparing for some ap subjects (learning at home) and wanna read some textbooks that recommended by collegeboard, but have no idea if I shoud read earlier editions or the newest ones, do the editions restricted?</p>
<p>I’m preparing for some ap subjects (learning at home) and wanna read some textbooks that recommended by collegeboard, but have no idea if I shoud read earlier editions or the newest ones, do the editions restricted?</p>