<p>CliffsAP is by far the best review book, but I’ve heard 5 steps to a 5 is pretty good too.
Since your school offers ap exams, I would assume you would take the AP Bio exam at the same test center as your fellow classmates. My school doesnt offer any aps, and I still took the AP Bio at my school (with my guidance counselor as a proctor haha).
As mentioned by @iwaitz4u, Quizlet is an AMAZING RESOURCE. Quizlet helped me remember everything about plants. i strongly encourage you to make a free account.
[AP</a> Pass - AP Biology Calculator](<a href=“http://appass.com/calculators/biology]AP”>AP Biology Test Score Calculator - AP Pass) Use this to calculate your ap score when practicing, as most review books have not been updated to comply with the ‘new’ calculation procedure (no points off for wrong answers :D). IMO, don’t take prac. tests until you have finished all the material, as prac. tests are few in number and therefore extremely valuable. This also means working at a speedy pace (don’t procrastinate, but don’t go so fast you don’t absorb the material. I spent a month and a half on plants, for example.)
PM me if you have any more questions, I’d be glad to help! 
Credentials: Five on 2011 Exam, self studied :D</p>