AP Biology read textbook or Cliffs

<p>Hi, my question is simple which is better to prepare with for the ap biology exam read the textbook or use an ap prep book such as cliffs. Also will everything in Cliffs biology review cover the topics on the Ap biology exam.</p>

<p>uh...both...</p>

<p>If there is something you don't understand in the Cliffs...check the textbook.</p>