<p>I have the first edition bought two years ago, and i jus found out that there is a new one second edition. Do I have to buy this new edition?? is there as other part overlapping between two other than the seven or eight practice questions???</p>
<p>The only difference between the two is that the First Edition has 8 practice tests while the Second has 10. Seven of these tests are the same in both books with 3 new previously administered tests added to the second edition blue book. The first edition blue book, i believe, has one unique test that the second edition does not.</p>
<p>The second edition contains 3 previously administered tests (the first three) and the rest are tests composed of questions from past tests (also found in the first ed).</p>