Test Prep Books Reviews:
I've perused several AP English Literature 2008 study guides commonly available. As is true of most years, many of the guides for English are substandard, perhaps even damaging to your test score as they misrepresent what you will encounter on the real exam. A few, though, may be worth your while.
I only purchased the Princeton Guide myself as truly representing College Board philosophy and approach to testing. It's clear that they've been paying attention even to the annual readers' comments in assembling test strategies. Only two exams, but they're probably the best exams across the competitors.
If you are looking for more, consider the Barron's Guide for the tests only and perhaps the Kaplan Guide for overall quality.
I make no claims about how effective these texts are in the other AP content areas!