<p>They sell both in stores where abouts I like, is there a difference? Should I just go with the 2011 one?</p>
<p>I didn’t know the 2011 official sat study guide was out but if your talking about the difference between the 1st edition and 2nd edition, there are 2 more practice tests in the 2nd edition, and 3 of those were actual sat tests that were administered. I would go with the second edition because of the extra practice and buy it online from amazon.com for about 10$.</p>