different editions of The Real Act Prep have different tests?

<p>I don’t know whether I should order only one of them or both. Does the new edition (September 2011) have totally new tests or is it 3 tests from the old book and 2 new tests?</p>

<p>[Amazon.com:</a> The Real ACT (CD) 3rd Edition (Real Act Prep Guide) (9780768934403): Inc. ACT: Books](<a href=“http://www.amazon.com/gp/product/0768934400/sr=8-1/qid=1319939880/ref=olp_product_details?ie=UTF8&me=&qid=1319939880&sr=8-1&seller=]Amazon.com:”>http://www.amazon.com/gp/product/0768934400/sr=8-1/qid=1319939880/ref=olp_product_details?ie=UTF8&me=&qid=1319939880&sr=8-1&seller=) New edition (2011) of the Real Act Prep</p>

<p>[Amazon.com:</a> The Real ACT Prep Guide (The only guide to include 3 Real ACT tests): ACT: Books](<a href=“http://www.amazon.com/gp/product/B001OMHUOW/sr=8-4/qid=1319939880/ref=olp_product_details?ie=UTF8&me=&qid=1319939880&sr=8-4&seller=]Amazon.com:”>http://www.amazon.com/gp/product/B001OMHUOW/sr=8-4/qid=1319939880/ref=olp_product_details?ie=UTF8&me=&qid=1319939880&sr=8-4&seller=) old edition (2005) of the Real Act prep</p>

<p>and apparently there’s one more, 2007 edition [Amazon.com:</a> The Real ACT Prep Guide: The Only Guide to Include 3Real ACT Tests: ACTOrg: Books](<a href=“http://www.amazon.com/Real-ACT-Prep-Guide-Include/dp/B005SN50C2/ref=sr_1_2?s=books&ie=UTF8&qid=1319940314&sr=1-2]Amazon.com:”>http://www.amazon.com/Real-ACT-Prep-Guide-Include/dp/B005SN50C2/ref=sr_1_2?s=books&ie=UTF8&qid=1319940314&sr=1-2)</p>

<p>Are they any different?</p>

<p>The first three tests are the same in all books.</p>