ACT.org - This link will take you to ACT's free prep resources page.

Kaplan - Kaplan's free ACT prep resources

Khan Academy - Free SAT resources that can help prepare for any college admissions test.

Varsity Tutors - Free ACT diagnostic tests

The Critical Reader - Free resources to help students improve their reading skills

Erik the Red - Free resources to help students improve math skills

Union Test Prep - Free comprehensive test prep resources

March 2 Success - Testing resources provided by the US Army

Any ACT prep books are great, but these are some of the best.  They can be found in bookstores, used bookstores, and online.  They all offer tips and tricks, practice tests, and answer explanations.  This can be a great way to do some quick, easy ACT prep.

• The Official ACT Prep Guide 2022-2023
• The Princeton Review
• ACT Black Book