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ACT (American College Tests)

ACT (American College Tests)

College & University

ACT (American College Tests): Find the Best ACT Prep Books for Your Study Goals

Preparing for the ACT can open doors to your dream colleges and scholarships. Whether you’re aiming for a top score, filling in knowledge gaps, or just getting comfortable with the test format, the right ACT prep books make all the difference. Here, you’ll discover a curated selection of some of the best ACT prep books, including official guides, practice workbooks, and subject-specific resources—all available at affordable prices when you buy used ACT prep books on ThriftBooks.

Why Use ACT Prep Books?

Studying with ACT prep books helps you:

  • Understand the structure and timing of the ACT
  • Practice with real or realistic questions
  • Target your weakest areas for improvement
  • Build confidence and reduce test anxiety
  • Learn strategies for every section—English, Math, Reading, Science, and Writing

With so many options, it’s important to choose the right resources for your needs. Below, we break down the best ACT prep books for different study goals and learning styles.

Top Official ACT Study Guide Books

If you want to practice with real test questions and get as close to the actual exam as possible, start with official ACT study guides. These books are written by the test makers and offer authentic practice material, test-taking tips, and detailed answer explanations.

  • The Real ACT Prep Guide – Widely regarded as the most authoritative source for ACT practice, this guide features actual ACT questions from past exams and expert strategies from ACT, Inc. It’s ideal for students who want the closest experience to test day.

Using official guides is a smart starting point or supplement to any study plan. When you buy used ACT prep books like these, you can prepare efficiently without breaking your budget.

The Best ACT Prep Books for Comprehensive Study

For students who prefer a thorough review of all ACT topics—plus plenty of tips and practice questions—comprehensive ACT prep books are a great choice. These books walk you through each section of the test and often include full-length practice tests, answer explanations, and strategies for boosting your score.

  • The ACT For Dummies – Known for its approachable style, this book breaks down every section of the ACT in plain English. It’s perfect for students who want straightforward explanations, practice questions, and test-taking strategies that actually make sense.
  • Barron's ACT – This comprehensive guide is packed with detailed subject reviews, skill-building exercises, and full-length practice tests. It’s a strong all-in-one resource for students aiming for a high score across all sections.
  • CliffsTestPrep ACT – If you like a step-by-step approach, this prep book offers clear explanations, diagnostic tests, and targeted practice to help you identify and overcome your weakest areas.

Choosing from these best ACT prep books will help you build a strong foundation in every test subject and maximize your study time.

Practice Makes Perfect: ACT Practice Test Books

One of the most effective ways to prepare for the ACT is by taking practice tests under timed conditions. Practice test books allow you to simulate the real exam, identify pacing issues, and review questions you missed. Here are some top choices if practice is your priority:

  • 1,296 ACT Practice Questions (College Test Preparation) – This book is packed with practice questions and detailed explanations, making it perfect for students who want to drill every type of ACT problem until they feel confident.
  • McGraw-Hill's 10 ACT Practice Tests – Get plenty of test-day experience with ten full-length practice exams, complete answer keys, and strategies for improving your speed and accuracy. It’s a must-have for students who learn best by doing.

By working through these practice books, you’ll become familiar with the ACT’s format and learn to manage your time effectively on test day.

Subject-Specific ACT Prep Books

If you need extra help in certain areas of the ACT, consider subject-specific guides that focus on your weaknesses. Targeted practice can make a big difference in your overall score.

  • Barron's ACT English, Reading, and Writing Workbook – This workbook zeroes in on the verbal sections of the ACT, offering targeted lessons and practice questions for English, Reading, and Writing. It’s perfect for students who want to boost their scores in these high-impact areas.
  • Kaplan ACT Math and Science Workbook – Struggling with Math or Science? This book provides focused practice and step-by-step solutions to help you master the most challenging ACT topics.

Whether you’re aiming to balance your strengths or improve a specific section, these ACT prep books offer the specialized support you need.

Beyond Test Prep: Books for College Planning and Motivation

Success on the ACT is just one step in your college journey. If you’re looking for inspiration or guidance on choosing the right school, or simply want a mental break, consider these related reads:

What About Non-ACT Books in This Collection?

Occasionally, you might come across books not directly related to ACT prep, such as Dragon Hunt (WarCraft: The Sunwell Trilogy, #1). While this fantasy adventure isn’t for test prep, taking a break with a good story can actually reduce stress and help you recharge before your next study session.

How to Choose the Right ACT Prep Book for You

Not sure where to start? Here are a few tips to help you buy used ACT prep books that fit your study style:

Shop Used ACT Prep Books and Save

ThriftBooks offers a wide selection of gently used ACT prep books, so you can access the best resources for less. Buying used not only saves you money but is also an eco-friendly way to prepare for your future. Start browsing our collection and find the right ACT prep book for your journey today!

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