<p>Ok this might sound stupid, but what exactly are blue books and direct hit books?
I keep reading these in posts but I have no clue what they are</p>
<p>Anyone info would be helpful!</p>
<p>“Blue Book” refers to The Official SAT Study Guide, Second Edition, which is published by the College Board. Buy this book and do the practice tests – enough said. 
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<p>The Direct Hits series is in its second edition currently and comprises two volumes. They contain vocabulary words and are an efficient way to prepare for Sentence Completion questions.</p>