Best prep-book to significantly improve math section??

<p>Hey everyone, I'm looking for recommendations for the best prep book to raise math scores to the 700+ range. I'd prefer a book with thorough revision (since I'm pretty bad at math) and easy explanations. Sure, it may be impossible to find "perfect" but anything close to it will do.</p>

<p>My practice test scores have been in the 550-630 range.</p>

<p>Thanks a lot!</p>