The Official ACT Prep Guide, 2016-2017 by ACT Staff is a comprehensive textbook designed to help students prepare for the ACT exam. Published by Wiley & Sons, Incorporated, John, this trade paperback book contains 720 pages of essential study aids. Written in English, this guide covers a range of subjects related to the ACT exam, providing detailed information and insights to support students in their preparation. With a publication year of 2016, this book serves as a valuable resource for students looking to improve their scores on the ACT exam.