AP environmental and AP chemistry help

<p>I am planning on taking AP chemistry next year as a senior and taking the AP exam.
i was thinking that i should start studying the material this summer. what book should i buy?</p>

<p>and another thing. i hear that AP environmental is really easy. would you people recommend that i buy some books for ap enviro and self-study it and then take the AP exam without taking AP environmental?</p>

<p>bump bump bump</p>

<p>anyone???</p>