<p>I was browsing through Amazon, and noticed that there are at least five different versions of the Real Subject Tests book.</p>
<li><p>The 2006 edition (the blue one)</p></li>
<li><p>The 2005 edition (Real SAT Subject Tests, more of a dark blue cover)</p></li>
<li><p>The August 1998 edition (Real SATII 2nd edition)</p></li>
<li><p>The January 1998 edition (Real SatII)</p></li>
<li><p>The 1994 edition (The Official Guide to SATII)</p></li>
</ol>
<p>Are the sample tests in all these books different, or are they recycled? I would buy all of them just for the practice tests, but if they’re all the same there’s no point:(</p>