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The best and most reliable book or resource is the GMAT Official Guide (OG) by GMAC. It’s made by the actual test makers, and has real questions from past exams. So if you only pick one book, start with this.
For Quant, go with Manhattan Prep’s GMAT Advanced Quant if you’re aiming for 700+. It covers tougher questions and helps build accuracy. If your basics are still weak, Kaplan GMAT Math Workbook can be more beginner-friendly.
For Verbal, try Powerscore Critical Reasoning Bible and Manhattan SC (Sentence Correction). These two are widely used and explain concepts in a simple way.
And for practice, don’t ignore mocks. Books can teach you topics, but taking GMATPrep free mocks from mba.com gives you the real feel.
Stick to 2–3 books max. Don’t collect too many — quality over quantity always works better for GMAT.
Want to know which books will suit you the best? Read this blog to know now
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Well the right and best book or resource to begin with is the GMAT Official Guide. It’s made by the test makers and gives you real questions from past exams. That helps you get used to the question style and difficulty.
For extra practice, you can also look at books like Manhattan Prep’s GMAT series, especially for Quant and Sentence Correction. They explain concepts in a simple way and include lots of practice. Another good one is Kaplan’s GMAT Prep Plus it gives a balanced overview with both strategies and practice tests.
But remember no book will help unless you stay consistent with your prep so start with one or two trusted books, stick to a routine, and focus on understanding your mistakes. That’s how most students improve, one good practice session at a time.