SAT Questions

I’m planning to borrow some books from the libraries to study for the SAT.
I read that the SAT has changed its format or something.
So about at what year publishing and up is a SAT prep book relevant for the new SAT?

For any of you who have used the Kaplan SAT prep book series, please tell me if it helped you out a lot, and if you received a score of 2000+ on the SAT as a result of using it.

I have a 2004 sat prep book. Is that outdated, or will i still do well by studying from it?
This will be the first time i’ve taken the SAT.

I found a SAT prep book in my house from my sister, and its the Peterson’s Panic Plan for the SAT, but its from 2001. Will it be okay to use it? Or do I need to go out and buy a new edition?

If you have taken the SAT test recently please share your experience by telling us what you would have done differently. Were there any surprises? Were the questions harder than the ones administered by the College Board test book? Were they easier than the ones provided by Barron’s prep book?

I’m taking the SAT this May, but I’m studying using Princeton Review’s 2006 version of a SAT Prep book. By using this book that is two years old, am I just as guaranteed to score as high as I would if I were using a 2008 Prep book? May be a stupid question, but I just want to be sure. Thanks in advance!