Princeton Review ACT Book?

Hi!

Is the cracking the act 2015 Princeton review book. I need more practice tests as I already exhausted the tests in 1296 practice questions.

Does anyone have recommendations for books with really good ACT practice questions. Please help!

Thanks!

bump

I have the same question. I just got a PR copy, and heard that it was slightly harder than the real ACT. But, idk for sure.