The Official ACT® Prep Guide 2021-2022 is a comprehensive study guide published by Wiley, designed for students looking to prepare for the ACT® exam. This book, authored by the ACT® organization, covers a range of subjects including English Studies and Mathematics, offering in-depth preparation for the test. With a focus on advanced level material, this 1st edition guide is an essential resource for students looking to excel in their ACT® preparation.