<p>i score around 680-720 in CR and i want a book to boost my score up 30-50 points. i want some tips, but mostly practice problems/tests.</p>
<p>i got the kaplan critical reading workbook, but i've looked around and saw that many here say it is far too easy. i think a more difficult book would be better positioned to boost my score.</p>
<p>any suggestions on more challenging CR books outside of the kaplan one? is barron's hard enough?</p>