Who to/where do I sell my old ap prep books at the end of the year?

[Academicterror]

<p>Any advice on selling ap prep books after you've passed the exam? I have mild ocd so I never write in my prep books and they're perfectly brand new at the end of the year. Should I sell them to incoming AP Bio/Lang/World/Physics B/Chemistry/Calc kids?</p>

[Adam_E]

<p>What kind of Calc book do you have? Take paypal?</p>

<p>Id be interested.</p>

<p>Adam</p>