Raising score from 24 to 27-29?

<p>I took the ACT this past April without much studying (two practice tests). I got:</p>

<p>Composite-24
English-28
Math-23
Reading-22
Science-23</p>

<p>Reading and math were the big disappointing factors. I got a 27 the first practice test, and a 28 on the second with math. And I got a 31 and a 33 in reading in my practice tests. I plan to retake the ACT in September and try to get between a 27 and a 29. Have any of you ever raised your scores by similar numbers, and if so which books did you use?</p>

<p>Thanks</p>