Reddit mentions of Ultimate Guide to the Math ACT

My friends and I really like this book. It goes in-depth with every skill needed on the ACT, with explanations and ample practice problems.

Keep in mind that the creators of CrackACT have no credentials and the material may not be similar at all. Also, test prep books often have really good explanations, which could help you understand the problems better.

I recommend this book for math: https://www.amazon.com/gp/offer-listing/1936214601/ref=olp_f_used?ie=UTF8&f_new=true&f_used=true&f_usedAcceptable=true&f_usedGood=true&f_usedLikeNew=true&f_usedVeryGood=true

I ordered this book based on the excellent reviews and the tons of recommendations I've gotten https://www.amazon.com/gp/product/1936214601/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

1)https://www.amazon.com/ACT-Prep-Black-Book-Strategies-ebook/dp/B00K6L2L9Q/ref=pd_sim_351_1?ie=UTF8&dpID=51fhqm2hBrL&dpSrc=sims&preST=_UX300_PJku-sticker-v3%2CTopRight%2C0%2C-44_OU01_AC_UL320_SR248%2C320_&psc=1&refRID=VFKQ5W3ADG88DD77P1HJ
2)https://www.amazon.com/gp/product/B01FWOROA2/ref=s9_simh_gw_g351_i4_r?ie=UTF8&fpl=fresh&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-5&pf_rd_r=B3XBC5AH9V5FV6PN42XN&pf_rd_t=36701&pf_rd_p=cca70e28-a3b0-4f0d-b847-0ae9cb54558a&pf_rd_i=desktop
3)https://www.amazon.com/gp/product/B007ZFIJPQ/ref=s9_simh_gw_g351_i12_r?ie=UTF8&fpl=fresh&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-5&pf_rd_r=B3XBC5AH9V5FV6PN42XN&pf_rd_t=36701&pf_rd_p=cca70e28-a3b0-4f0d-b847-0ae9cb54558a&pf_rd_i=desktop
4)https://www.amazon.com/College-Pandas-ACT-English-Advanced/dp/0989496406/ref=sr_1_7?ie=UTF8&qid=1467451882&sr=8-7&keywords=ACT+english
5)https://www.amazon.com/Ultimate-Guide-Math-Richard-Corn/dp/1936214601/ref=sr_1_8?ie=UTF8&qid=1467451882&sr=8-8&keywords=ACT+english

and if you need help with reading comp try this one : https://www.amazon.com/Complete-Guide-ACT-Reading/dp/1496126750/ref=sr_1_1?ie=UTF8&qid=1467452199&sr=8-1&keywords=ACT+reading. I haven't read this book, but I heard people say good things about it.

ACT Prep Black Book, Ultimate Guide to the Math ACT and Top 50 ACT Math Skills for a Top Score are used by lots of students and tutors. I won't recommend you reading the whole book though. Smart prep is all about finding your weak knowledge points first through practice and work on those specific skills through targeted and focused practice or reading related materials to fill the content gaps.