The only study guide with real GMAT® questions—and their answers—developed by the test creators.

In the 11th edition, you'll find some useful new features:

a NEW diagnostic section to help you figure out where to focus your test-prep efforts
800 questions organized by difficulty to save you study time
a comprehensive math review of arithmetic, algebra, geometry, and word problems, the skills tested by the GMAT® exam
about 270 Analytical Writing Assessment topics
The Official Guide for GMAT® Review, 11th Edition offers 800 retired GMAT® questions and thorough explanations of the answers. Practicing with questions that have appeared on the GMAT® exam before will prepare you for the types of questions you'll see when you take the real thing. This Guide will help you learn what you need to know to answer those questions correctly.

source: mba.com