"Nothing is better than the real thing. Official GMAT questions are the gold standard for getting ready for the test."

The GMAT Official Guide 2026–2027 is here, and that means new official questions, updated online practice tools, and fresh ways to prepare for test day.

In this episode of Inside the GMAT, GMAC Zach is joined once again by Stacey Koprince of Manhattan Prep to break down what's new in this year's Official Guide collection and how candidates should actually use it. They discuss why official GMAT questions are so valuable, how to balance official prep with third-party learning resources, and why reviewing your practice questions is just as important as answering them.

Zach and Stacey also cover common prep mistakes, including burning through too many questions too quickly, studying one question type in isolation, and skipping review on questions you got right. Plus, Stacey shares practical advice for using the Official Guide, section-specific review books, online question banks, and official practice exams more strategically throughout your prep.

Whether you're just starting your GMAT journey or looking for more official practice before test day, this episode will help you get more out of every question you study.

Purchase the new GMAT Official Guide: mba.com/prep

Register for the GMAT exam: mba.com/register

Get materials from Manhattan Prep: manhattanprep.com/gmat

About Stacey:

Stacey Koprince is one of the most recognized names in test prep, with over 15 years of experience teaching the GMAT, EA, GRE, and LSAT. As Manhattan Prep's Director of Content & Curriculum, she has written countless articles, guides, and video explanations that thousands of students rely on. A former management consultant, Stacey now spends her days helping future business leaders master tricky concepts and find confidence in their prep—something she's passionate about seeing "click" for every student.

Key Takeaways

1. Official questions matter because they are real GMAT questions. Third-party prep can teach concepts and strategies, but official GMAT questions are the best way to practice what the real exam will feel like.
2. The Official Guide works best after foundational learning. Candidates should first learn the underlying content, question types, and strategies, then use the Official Guide to quiz themselves.
3. Review is where score improvement happens. Stacey emphasizes that every question should be reviewed, including questions answered correctly, because correct answers can reveal shortcuts, traps, and repeatable strategies.
4. Mixed practice is more effective than over-drilling one question type. The GMAT requires candidates to shift between skills, formats, and sections. Prep should mimic that experience.
5. The newest Official Guide may be worth it, but not always immediately. If a candidate already owns last year's guide and still has plenty of unused questions, they can continue with it. If they are buying for the first time, the newest edition is the better choice.
6. Practice exams should be used carefully. Candidates should review each practice exam thoroughly and complete targeted study before taking another one.

Chapters:

00:00 Introduction to the Official Guide 2026-2027 01:07 The Importance of Official GMAT Tools 03:20 New Features and Questions in the Official Guide 11:38 Exploring the Content of the Big OG 16:02 Strategic Use of the Official Guide 18:15 The Value of Reviewing Correct Answers 22:14 Common Mistakes in GMAT Preparation 27:44 Utilizing the Official Guide Effectively 29:24 Review Books and Their Importance 34:17 Integrating Official Prep Tools with Outside Learning 37:46 Pro Tips for Leveraging the New Official Guide