Not sure if you knew this, but one can buy it at http://www.mba.com/mba/Store 

I find that most of the questions are the same as in the 1000 Gmat questions series, though...

Also, they came out with a quant and verbal seperate book.  Probably to put Kaplan and Princeton out of business!

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The Official Guide for GMAT Review, 11th Edition

The only study guide with 800 real GMAT® questions—and their answers—by the creators of the test.

In addition to the questions and answers, this guide features:

• NEW diagnostic section that helps you assess where to focus your test-prep efforts
• NEW organization of questions in order of difficulty to save you study time
• a comprehensive math review covering the topics tested on the GMAT® exam (arithmetic, algebra, geometry, and word problems)
• approximately 270 Analytical Writing Assessment topics

The Official Guide for GMAT® Review, 11th Edition contains 800 retired GMAT® questions, with thorough explanations. Answering questions that have appeared on the GMAT® exam before will give you experience with the types of questions that appear on the test. This Guide will help you learn what you need to know to answer the questions correctly.

There is no overlap between questions found in the Official Guide for GMAT® Review, 11th Edition, the Official Guide for GMAT® Quantitative Review, the Official Guide for GMAT® Verbal Review, and GMAT® Prep.
Graduate Management Admission Test®, GMAC®, GMAT®, and MBA Store® are registered trademarks of the Graduate Management Admission Council®. All rights reserved. [attach]2753[/attach]

The Official Guide for GMAT Quantitative Review http://www.mba.com/mba/Store/products/PreparefortheGMAT/officialguidequantitativereview.htm

The Official Guide for GMAT® Quantitative Review is the only book of its kind on the market written by the creators of the GMAT® exam. It is an intensive study guide to focus your preparation on the key quantitative areas of the GMAT® exam. This Guide offers 300 real GMAT® questions, with answers and explanations, to help you focus your math skils in the following areas: Arithmetic Algebra Geometry Problem Solving Data Sufficiency The Official Guide for GMAT® Quantitative Review will help you solve equations, interpret data, coordinate geometry, and determine probability with assurance and ease. This targeted review helps you get the most out of you study time and improves your familiarity with the kind of questions found on the GMAT® exam. There is no overlap between questions found in the Official Guide for GMAT® Review, 11th Edition, the Official Guide for GMAT® Quantitative Review, the Official Guide for GMAT® Verbal Review, and GMAT® Prep. Graduate Management Admission Test®, GMAC®, GMAT®, and MBA Store® are registered trademarks of the Graduate Management Admission Council®. All rights reserved.

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The Official Guide for GMAT Verbal Review http://www.mba.com/mba/Store/products/PreparefortheGMAT/officialguideverbalreview.htm

The Official Guide for GMAT® Verbal Review is the only book of its kind on the market written by the creators of the GMAT® exam. It is an intensive study guide to focus your preparation on the key verbal areas of the GMAT® exam. This Guide offers 300 real GMAT® questions, with answers and explanations, to help you focus your verbal skils in the following areas: Reading Comprehension Critical Reasoning Sentence Correction Analytical Writing Assessment The Official Guide for GMAT® Verbal Review focuses on your ability to read and comprehend written material, to reason and evaluate arguments, and to correct written material. This targeted review will help you get the most out of you study time and prepare you for the GMAT® exam. There is no overlap between questions found in the Official Guide for GMAT® Review, 11th Edition, the Official Guide for GMAT® Quantitative Review, the Official Guide for GMAT® Verbal Review, and GMAT® Prep. Graduate Management Admission Test®, GMAC®, GMAT®, and MBA Store® are registered trademarks of the Graduate Management Admission Council®. All rights reserved