<p>Is it effective? I've got Grubber 2009</p>
<p>I have Gruber’s SAT 2400. I think that it can be effective if coupled with lots of practice problems. The book outlines useful strategies for all three sections (math is the best) that should be mastered before test day. Bottom line, if you plan to practice every day then its a great investment.</p>
<p>I have barrons`2400.Yeah,it is kind of useful ,but i definitely can tell you this book is not a ‘‘must-have’’</p>
<p>There’s a gruber’s 2400 now? If you are going to choose one of the “2400” series, I’d suggest barron’s.</p>