31 to a 34?

<p>Well I went from a 30 to a 33 from last June's ACT to this Sept. ACT with absolutely no studying so it's definitely possible.</p>

<p>Hahah so weird! Same situation. I took the ACT with literally 0 preparation and earned a 31 (34E,33M,31R,25S). How can I improve to atleast a 33-34? I haven't read the thread yet so I guess i should do that :P. I am loooking to take in October, but might take again also since it is score choice. What are the best prep books?</p>